[sage-support] How make show("some text") be LEFT ALIGNED instead of CENTERED?
How make show("some text") be LEFT ALIGNED instead of CENTERED? -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] How combine text (with and without Latex) and equations when printing?
How combine text (with and without Latex) and equations when printing? -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] How change background color of this output in Sagecell?
This outputs some text. show(table(["test"])) How change the background color? -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] How remove spacing between table elements in Sagecell output?
In SageCell this shows each element with a nice light blue background and a TINY amount of space between them show(table(["A", "B", "C"])) How remove that space so that all the light blue backgrounds go together and appear all as one piece? Chris -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Re: How solve simple log equation?
Is it always a coin toss whether a computer algebra system can solve a log equation? Should I not expect to make a career out of using Sage to solve nonlinear equations? cs On Sunday, July 16, 2017 at 3:41:42 PM UTC-5, Emmanuel Charpentier wrote: > > Wups... My bad : I wasn't really awake, it seems... > > Anyway, as suggested by Dominique, you can do : > > sage: E=log(y) == C + log(x) + log(y-1);E > log(y) == C + log(x) + log(y - 1) > sage: S=E.solve(x)[0].solve(y);S > [y == x*e^C/(x*e^C - 1)] > sage: bool(E.subs(S).expand_log()) > True > > which checks. > > Again, sorry for the noise... > > -- > Emmanuel Charpentier > > > Le dimanche 16 juillet 2017 18:29:46 UTC+2, Chris Seberino a écrit : >> >> Emmanuel >> >> Thank you for your reply but you solved a DIFFERENT equation. Notice >> mine has an x variable in it. >> I can get your's to work but not mine. >> >> cs >> > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Re: How solve simple log equation?
Emmanuel Thank you for your reply but you solved a DIFFERENT equation. Notice mine has an x variable in it. I can get your's to work but not mine. cs -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] How solve simple log equation?
This does not solve... var("y C") solve( log(y) == C + log(x) + log(y-1),y) It returns [log(y) == C + log(x) + log(y - 1)] Any ideas? Thanks! Chris -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] How remove deprecation warning when substituting expressions in this snippet?
I've tried lots of variations of the following to replace a product of functions with y. They all give the error at the bottom in Sagecell. How fix? var("y") f = function("f")(x) g = function("g")(x) eqtn = f(x) * g(x) + 4*f(x)^2 * g(x) == 0 eqtn = eqtn.substitute({f(x) * g(x) : y}) show(eqtn) /home/sc_serv/sage/local/lib/python2.7/site-packages/IPython/core/interactiveshell.py:2881: DeprecationWarning: Substitution using function-call syntax and unnamed arguments is deprecated and will be removed from a future release of Sage; you can use named arguments instead, like EXPR(x=..., y=...) See http://trac.sagemath.org/5930 for details. exec(code_obj, self.user_global_ns, self.user_ns) -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Re: Why factor(6*x+3) doesn't give 3*(2*x+1) in SageCell?
Saad: Thanks. What would (hopefully) please everyone is if there was a way to configure the way Sage Cell behaves similar to how local installations can write stuff to a config file. Is there a way to hardcode the real domain/range and other things like implicit multiplication? cs On Saturday, April 8, 2017 at 3:21:17 PM UTC-5, saad khalid wrote: > > I am a student and I definitely agree with Chris Seberino here. I don't > think it is the job of software (or, rather, it is not good CAS design) to > try and teach people mathematics in this way. I think that the CAS should > be as convenient and intuitive as possible. As an example, I didn't even > know that the functionality with rings that projetmbc highlights in his > post was even possible, I simply assumed that Sage was limited in how it > could do factorization. This is coming from someone who, in comparison to > the rest of the math students at his school, is much more willing to read > the documentation and fiddle with the function and google for solutions > than most others, and I still didn't find this out till just now (and not > for lack of searching on previous occasions, I should say). Also, w/ > respect to Dima's statement about getting used to domains, I do not think > that is exactly related here. The "Symbolic ring" which has the property of > defaulting to the most expanded form of an expression is not a mathematical > concept that I have ever heard of, it is behaviour that is part of Sage. It > is behaviour that is very disconcerting for a new user using the factor > function. I should add, on what I believe to be an unrelated note, that > even if we were debating whether factorization should default to the reals > or the complex numbers or something similar, I would argue that it should > default to the most widely utilized behaviour, with the other options being > left as just that, options (that you can turn on by keyword). So in the > case of factoring to reals or complex roots, I would say that it should > default to real roots, with a keyword allowing complex roots. Back to the > main point, I do wish the factor function was made more intuitive, and that > factoring in SR would recognize when it is integers and actually do > something instead of giving you back what you put in. > > > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
Re: [sage-support] Why factor(6*x+3) doesn't give 3*(2*x+1) in SageCell?
I have no doubt you know about group theory and math in general more than me. I have no doubt your answer is defensible and accurate. What I'm concerned about is the young students and what they expect to see when they type factor( ... ). cs On Friday, April 7, 2017 at 9:56:31 AM UTC-5, projetmbc wrote: > > Just try : > > - > Z_T, t = ZZ['x'].objgen() > > print factor(6*t+3) > print factor(6*x+3) > - > > You will se that you need to use the right ring of polynomials. > > C. > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Re: Why factor(6*x+3) doesn't give 3*(2*x+1) in SageCell?
I *agree* that the answer should be expanded in your example. But when you use the factor function it should have an effect no!? (I saw the other reply about rings. See my reply to that if you wish too.) On Friday, April 7, 2017 at 3:04:01 AM UTC-5, Ralf Stephan wrote: > > Because in the symbolic ring 3*(2*x+1) is immediately expanded again. Try > yourself: > > sage: 2*(1+3*x) > 6*x + 2 > > But see also https://trac.sagemath.org/ticket/21067 > > Regards, > > On Thursday, April 6, 2017 at 5:47:28 PM UTC+2, Chris Seberino wrote: >> >> Why factor(6*x+3) doesn't give 3*(2*x+1) ? >> >> Thanks! >> >> cs >> > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
Re: [sage-support] Why factor(6*x+3) doesn't give 3*(2*x+1) in SageCell?
No -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Why factor(6*x+3) doesn't give 3*(2*x+1) in SageCell?
Why factor(6*x+3) doesn't give 3*(2*x+1) ? Thanks! cs -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Re: How make Sage eliminate identical terms on both sides of an algebra equation? (simplify not doing it
Thanks. I'll look into rings. Never used those! cs On Tuesday, November 29, 2016 at 4:47:08 PM UTC-6, Dima Pasechnik wrote: > > Do you mean that you want to simplify/reduce polynomial expressions? > It's much better for this to use the appropriate (polynomial) rings, where > you will be able to use the very powerful tools specifically for > polynomials, rather than the symbolic ring. > > > On Tuesday, November 29, 2016 at 5:55:48 PM UTC, Chris Seberino wrote: >> >> I'm trying to get Sage to do simplification of algebra equations. After >> I expand some polynomial products I see identical terms on both >> sides of the equation. >> >> How make Sage eliminate those? the simplify and full_simplify don't seem >> to do it. >> >> >> -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] How make Sage eliminate identical terms on both sides of an algebra equation? (simplify not doing it
I'm trying to get Sage to do simplification of algebra equations. After I expand some polynomial products I see identical terms on both sides of the equation. How make Sage eliminate those? the simplify and full_simplify don't seem to do it. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Trouble getting implicit_multiplication to work with sagecell.sagemath.org.
Shouldn't the 2 lines below work in SageCell? It gives an error because the implicit multiplication isn't set. Why? implicit_multiplication(10) 4 5 -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Re: Why solve(5^( x -1) == (0.04)^(2*x), x) returns empty set?
On Wednesday, November 19, 2014 8:48:07 AM UTC-6, Jakob Kroeker wrote: Even if it is expectable that in some cases (which?) solve may not return all solutions, it should be explicitly pointed out; Especially it should be stated that an empty list does not necessarily imply there are no solutions. Yes! Actually adding something like the following would be an improvement if (answer == []) and not_sure_there_are_no_solutions: print question else: print answer I heard Emmanuel's warning that the not_sure_there_are_no_solutions boolean may be hard to calculate in some cases. In my opinion, not_sure_there_are_no_solutions should default to True unless it is a case where we can with certaintly set not_sure_there_are_no_solutions = False. Other opinions? If everybody agrees, I will open a ticket. Please do! Thanks! -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Re: Why solve(5^( x -1) == (0.04)^(2*x), x) returns empty set?
Emmanuel Any way to make Sage act like it can't find the solution (emit question back to user) INSTEAD of emitting the empty set? I can't find the solution and There is no solution are NOT the same thing? cs -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Re: Why solve(5^( x -1) == (0.04)^(2*x), x) returns empty set?
If you ask Sage to do something it can't, like solve a quintic polynomial equation, it will spit the question back at you. If Sage did that I'd be fine. However, Sage spit back the empty set which is the WRONG answer and far different yes? On Sunday, November 16, 2014 12:54:20 PM UTC-6, RRogers wrote: Apparently the default solver doesn't do logarithms. For the default try: solve(log(5^( x -1)) == log((0.04)^(2*x)), x) [x == 8104022*log(5)/(8104022*log(5) + 52171681)] -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Re: Why solve(5^( x -1) == (0.04)^(2*x), x) returns empty set?
I didn't *need* to have 0.04. This is just a command that actually came up in real work. I didn't want to alter it in any way lest it may be a genuine bug. cs On Monday, November 17, 2014 6:48:04 AM UTC-6, Emmanuel Charpentier wrote: Why 0.04 ? Th notebook says : S=(5^( x -1) == (0.04)^(2*x)).subs({0.04:1/25}).log().solve(x) ; S [x == log(5)/(2*log(25) + log(5))] bool(S[0].rhs()==1/5) True (The last step is easily done by mental computation ; this is only a check.). HTH, -- Emmanuel Charpentier Le dimanche 16 novembre 2014 19:54:20 UTC+1, RRogers a écrit : Apparently the default solver doesn't do logarithms. For the default try: solve(log(5^( x -1)) == log((0.04)^(2*x)), x) [x == 8104022*log(5)/(8104022*log(5) + 52171681)] -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] Why solve(5^( x -1) == (0.04)^(2*x), x) returns empty set?
command in subject line should return 1/5 not empty set right??? What gives? -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
[sage-support] How create a plot of f(x, y, z) using color for function value? (i.e. a 4D plot)
I've been searching the Internet and can't find examples of plots of functions of THREE variables like f(x, y, z). I'd like to use a different color at each point in space to denote the function value. Is that possible in Sage? Are there examples somewhere? (All the examples I saw were for 2 variable functions like g(x, y). ) Thanks, cs -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/groups/opt_out.
Re: [sage-support] bug found in solve function? solve( x * (x + 2) == 143, x) returns [x == 11, x == -13]
On Friday, July 12, 2013 5:01:11 PM UTC-5, William wrote: On Fri, Jul 12, 2013 at 2:41 PM, Chris Seberino cseb...@gmail.comjavascript: wrote: bug found in solve function? solve( x * (x + 2) == 143, x) returns [x == 11, x == -13] See here...new Sage session... What do you want it to return given the above input? Oops my faultI was getting confused with something else. My apologies. cs -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/groups/opt_out.
[sage-support] bug found in solve function? solve( x * (x + 2) == 143, x) returns [x == 11, x == -13]
bug found in solve function? solve( x * (x + 2) == 143, x) returns [x == 11, x == -13] See here...new Sage session... % sage -- | Sage Version 5.2, Release Date: 2012-07-25 | | Type notebook() for the browser-based notebook interface.| | Type help() for help.| -- sage: solve( x * (x + 2) == 143, x) [x == 11, x == -13] -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/groups/opt_out.
[sage-support] Possible to have a notebook server without state like wolframalpha.com just for single commands?
Sage notebooks are great but take a lot of RAM (I assume) partially because they need to remember all the history of the current session. Is it possible to trade history for responsiveness/memory by somehow running the notebook server to accept single commands and then forget the results? I'm envisioning something like wolframalpha.com where a teacher can ask all students to type single commands at a time without the need for saving history. Chris -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
Re: [sage-support] Possible to have a notebook server without state like wolframalpha.com just for single commands?
Oh wow that is soo awesome. Someone read my mind. I've been selling Sage to my students with a slightly inadequate server but Sage Cell Server will dispense with the need for passwords, memory issues and more. Their impressions of Sage are about to go up tenfold. A thousand thank yous. Chris -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
[sage-support] Re: Notebook server very slow. What are typical bottlenecks? I have ver5.2 and 1Gb RAM
I have a Xen Ubuntu Linux 1 Gb RAM virtual machine from a provider called Linode. I am running a notebook server on that virtual machine for my classes... even with only a handful of students hitting it at the same time it slows to a crawl. Is getting more RAM the only solution? How much do you need for 10 people to be able to hit the server all at the same time comfortably? cs On Monday, September 24, 2012 8:31:16 PM UTC-5, kcrisman wrote: On Monday, September 24, 2012 8:32:23 PM UTC-4, Chris Seberino wrote: Notebook server very slow. What are typical bottlenecks? I have ver5.2 and 1Gb RAM cs This is a little vague. Do you mean on your own personal computer, or are you trying to run a notebook server for others (e.g., students)? It's pretty likely that with more than a couple users, this would be too little RAM. -- You received this message because you are subscribed to the Google Groups sage-support group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
[sage-support] Re: Students leave their notebooks open so server has a TON of notebooks open....performance problem?
On Monday, September 24, 2012 9:36:36 PM UTC-5, P Purkayastha wrote: What has been observed however is that not all worksheets get closed and there are often many worksheets that remain open in the background. From a performance point of view, all that these worksheets do is eat up memory (~100M each). I don't know the cause of these dormant but nonfunctional open worksheets. Wow thanks for your response. This may answer 2 other questions at the same time. I noticed admin can't erase notebooks and also that performance is slow. Since I only have 1 Gb RAM, it would appear 10 open notebooks would be devastating. I've gotten in the habit of erasing all notebooks on the command line before class starts to prevent open notebooks lying around. It still is slow however. :( -- You received this message because you are subscribed to the Google Groups sage-support group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
[sage-support] Notebook server very slow. What are typical bottlenecks? I have ver5.2 and 1Gb RAM
Notebook server very slow. What are typical bottlenecks? I have ver5.2 and 1Gb RAM cs -- You received this message because you are subscribed to the Google Groups sage-support group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
[sage-support] Students leave their notebooks open so server has a TON of notebooks open....performance problem?
Students leave their notebooks open so server has a TON of notebooks openis that a problem? (I'm thinking about performance mainly.) cs -- You received this message because you are subscribed to the Google Groups sage-support group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
[sage-support] Error when installing 64 bit ver5.2 binary on Ubuntu 12.04.. == Syntax error: ) unexpecte
I just installed Ubuntu 12.04 and tried to install Sage ver5.2 When I try to run Sage for the first time I get this... % sage -- | Sage Version 5.2, Release Date: 2012-07-25 | | Type notebook() for the browser-based notebook interface.| | Type help() for help.| -- /usr/local/sage-5.2-linux-64bit-ubuntu_12.04_lts-x86_64-Linux/local/bin/python: 1: /usr/local/sage-5.2-linux-64bit-ubuntu_12.04_lts-x86_64-Linux/local/bin/python: Syntax error: ) unexpected cs -- You received this message because you are subscribed to the Google Groups sage-support group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
[sage-support] Re: Error when installing 64 bit ver5.2 binary on Ubuntu 12.04.. == Syntax error: ) unexpecte
That's odd, it doesn't even give a location where the ) was unexpectedly found. Was there any more output than that? No that was it verbatim. This is a 64 bit machine. That is the only thing different I can see from what I've used before. (This is an HP computer.) cs -- You received this message because you are subscribed to the Google Groups sage-support group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
[sage-support] Error installing package gcc-4.6.3
On new 64 bit Ubuntu 12.04, I tried compiling from source and got this error... (I know predefs.h exists because I can see the file here: /usr/include/i386-linux-gnu/bits/predefs.h .) In file included from /usr/include/stdio.h:28:0, from ../../../src/libgcc/../gcc/tsystem.h:87, from ../../../src/libgcc/../gcc/libgcc2.c:29: /usr/include/features.h:324:26: fatal error: bits/predefs.h: No such file or directory compilation terminated. make[5]: *** [_muldi3.o] Error 1 make[5]: Leaving directory `/usr/local/sage-5.2/spkg/build/gcc-4.6.3/gcc-build/i686-pc-linux-gnu/libgcc' make[4]: *** [all-stage1-target-libgcc] Error 2 make[4]: Leaving directory `/usr/local/sage-5.2/spkg/build/gcc-4.6.3/gcc-build' make[3]: *** [stage1-bubble] Error 2 make[3]: Leaving directory `/usr/local/sage-5.2/spkg/build/gcc-4.6.3/gcc-build' make[2]: *** [all] Error 2 make[2]: Leaving directory `/usr/local/sage-5.2/spkg/build/gcc-4.6.3/gcc-build' real3m49.574s user2m57.847s sys0m19.969s Error installing package gcc-4.6.3 -- You received this message because you are subscribed to the Google Groups sage-support group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
[sage-support] Re: Error when installing 64 bit ver5.2 binary on Ubuntu 12.04.. == Syntax error: ) unexpecte
SOLVED... I have 64 bit hardware but I installed 32 bit Ubuntu. (Sorry, I'm a newbie to 64 bit stuff and didn't even know there was a separate Ubuntu flavor.) When I installed the 32bit Sage binary it worked. One suggestion is to perhaps add a check to see if user trying to run the 64 bit binary on a 32 bit Ubuntu install to give a less cryptic error message. Hope that helps. Sincerely, CS -- You received this message because you are subscribed to the Google Groups sage-support group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
[sage-support] Re: error proxying Sage behind Apache2 after 5.2 update..... a '/' is missing in urls!?
SOLVED! I'm posting this in case it helps anyone else out there trying to use Sage with Apache. The problem with an Apache config issue. The line below is wrong... Redirect / https://sage.phil4.com It should be this: Redirect / https://sage.phil4.com/ (Notice the / at the end now.) cs -- You received this message because you are subscribed to the Google Groups sage-support group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
[sage-support] error proxying Sage behind Apache2 after 5.2 update..... a '/' is missing in urls!?
I've been successfully proxying older versions of Sage behind Apache2 using SSL. The same script doesn't work with Sage 5.2 for some reason. Here is my Apache code below (Code below redirects all to HTTPS.) The new problem is that when I try to log in as adminSage tries to go to https://sage.phil4.comhome/admin instead of https://sage.phil4.com/home/admin (Notice missing / in the middle!) Any help greatly appreciated. VirtualHost 72.14.188.15:80 # = ServerName sage.phil4.com ServerAlias www.sage.phil4.com DocumentRoot/var/www Options Indexes FollowSymLinks # = Directory /home/seb/MAIN/phil4/apache Order Allow,Deny Allow from All /Directory # = Redirect / https://sage.phil4.com # = /VirtualHost VirtualHost 72.14.188.15:443 # = ServerName sage.phil4.com ServerAlias www.sage.phil4.com DocumentRoot/var/www Options Indexes FollowSymLinks # = Directory /home/seb/MAIN/phil4/apache Order Allow,Deny Allow from All /Directory # = SSLEngine On SSLCertificateFile /etc/apache2/ssl/sage.phil4.com.cert SSLCertificateKeyFile /etc/apache2/ssl/sage.phil4.com.private_key SSLCertificateChainFile /etc/apache2/ssl/sage.phil4.com.int_cert # = ProxyPass/ http://127.0.0.1:8000/ ProxyPassReverse / http://127.0.0.1:8000/ # = /VirtualHost -- You received this message because you are subscribed to the Google Groups sage-support group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.
[sage-support] Re: Error message when use vectors in Sage 5 with Ubuntu 12.04...
On Monday, June 18, 2012 4:16:50 PM UTC-5, Oleksandr Kazymyrov wrote: Hi, I haven't the problem on Ubuntu 12.04: Oleksandr I fixed the problem. Today when I tried vector I got a DIFFERENT error message about a Fortran library missing. When I manually installed glibfortran3 it started working!?!?!? -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Error message when use vectors in Sage 5 with Ubuntu 12.04...
I installed Ubuntu 12.04 about 2 weeks ago along with Sage 5. I just now tried using vectors for the first time and got this error... sage: vector( [-1,2] ) --- AttributeErrorTraceback (most recent call last) /home/cs/Ws/Lone_Star/1401/Exams/ipython console in module() /usr/local/sage-5.0-linux-32bit-ubuntu_12.04_lts-i686-Linux/local/lib/python2.7/site-packages/sage/modules/free_module_element.so in sage.modules.free_module_element.vector (sage/modules/free_module_element.c:3789)() /usr/local/sage-5.0-linux-32bit-ubuntu_12.04_lts-i686-Linux/local/lib/python2.7/site-packages/numpy/__init__.py in module() 134 return loader(*packages, **options) 135 -- 136 import add_newdocs 137 __all__ = ['add_newdocs'] 138 /usr/local/sage-5.0-linux-32bit-ubuntu_12.04_lts-i686-Linux/local/lib/python2.7/site-packages/numpy/add_newdocs.py in module() 7 # core/fromnumeric.py, core/defmatrix.py up-to-date. 8 9 from numpy.lib import add_newdoc 10 11 ### /usr/local/sage-5.0-linux-32bit-ubuntu_12.04_lts-i686-Linux/local/lib/python2.7/site-packages/numpy/lib/__init__.py in module() 11 12 import scimath as emath --- 13 from polynomial import * 14 #import convertcode 15 from utils import * /usr/local/sage-5.0-linux-32bit-ubuntu_12.04_lts-i686-Linux/local/lib/python2.7/site-packages/numpy/lib/polynomial.py in module() 9 import re 10 import warnings --- 11 import numpy.core.numeric as NX 12 13 from numpy.core import isscalar, abs, finfo, atleast_1d, hstack AttributeError: 'module' object has no attribute 'core' sage: -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Can't make 404.html template to be used. Keep getting Apache 500 Internal Server Error instead.
Ug! Please accept my apology. cs On Jan 21, 3:25 am, Keshav Kini keshav.k...@gmail.com wrote: Er, have you perhaps sent this to the wrong list? -Keshav Join us in #sagemath on irc.freenode.net ! -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Can't make 404.html template to be used. Keep getting Apache 500 Internal Server Error instead.
I am proxying my Django app behind Apache. I created a 404.html in my template directory but when I try to test it I get the following error that appears to come from Apache... Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, [no address given] and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. Apache/2.2.16 (Ubuntu) Server at phil4.com Port 80 Here is the relevant Apache settings... NameVirtualHost 72.14.188.15:80 NameVirtualHost 72.14.188.15:443 WSGIRestrictEmbedded On VirtualHost 72.14.188.15:80 # = ServerName phil4.com ServerAlias www.phil4.com DocumentRoot/var/www Options Indexes FollowSymLinks # = WSGIProcessGroupphil4.com WSGIScriptAlias / /etc/apache2/wsgi/phil4.com.wsgi WSGIDaemonProcess phil4.com user=seb group=seb threads=25 # = Directory /home/seb/MAIN/phil4/apache Order Allow,Deny Allow from All /Directory # = Alias /favicon.ico /var/www/static/images/favicon.ico Alias /base.css/var/www/static/base.css Alias /static /var/www/static Alias /public /var/www/static/public Alias /misc/var/www/static/misc Alias /images /var/www/static/images Alias /books/ /var/www/static/books/ Alias /homework/ /var/www/static/homework/ Alias /exams/ /var/www/static/exams/ # = Redirect /sign_in https://phil4.com/sign_in Redirect /register https://phil4.com/register # = /VirtualHost -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Please explain this wrong answer with implict multiplication....
I had it turned on but I guess it doesn't get triggered for x (x -1). Any way to change the behavior or does that require a patch to Sage? On Dec 15, 1:37 am, Jason Grout jason-s...@creativetrax.com wrote: On 12/15/11 1:31 AM, Chris Seberino wrote: I know Sage has some issues with a variable in front of parens when using implicit multiplication. Why did that make the first give the wrong answer when using implicit multiplication? How is sage interpreting it? sage: solve(3 + x (x-1)==5,x) [x == 3] sage: solve(3 + x*(x-1)==5,x) [x == 2, x == -1] You have to explicitly turn on implicit multiplication; it's not on by default. In your case above, it's not on (unless you turned it on) So x(x-1) is interpreted as: f(x)=x f(x-1) i.e., x(x-1) is just x-1 (the function y=x evaluated at x-1) Thanks, Jason -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Please explain this wrong answer with implict multiplication....
I know Sage has some issues with a variable in front of parens when using implicit multiplication. Why did that make the first give the wrong answer when using implicit multiplication? How is sage interpreting it? sage: solve(3 + x (x-1)==5,x) [x == 3] sage: solve(3 + x*(x-1)==5,x) [x == 2, x == -1] cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: How make/hack 1D real number line plots like we learned in elementary algebra?
On Sep 7, 7:49 am, kcrisman kcris...@gmail.com wrote: If I select a number using an interact widget, it would be nice to see a plot of a 1D real number line with the selected point appear as a big colored dot. Plots of solutions to inequalities like x 1 would be icing on the cake and involve the same big colored dot with a ray drawn to one side. This is alreadyhttp://trac.sagemath.org/sage_trac/ticket/9793(and #8085). Interested in implementing it? :) Yes. I'll collect a list of these requests and take a short at it some time. cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] w/ sliders in interact functions, how apply format strings to the numbers? (Want to truncate decimals!)
This slider will display the corresponding numbers as the slider is moved @interact def _(a=slider(1, 2, 0.2)): print test The problem is the numbers have too many digits for my taste... e.g. 1.00, 1.20, 1.40, etc. How truncate or round or format? Thanks! Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] How make/hack 1D real number line plots like we learned in elementary algebra?
Sage can do great 2D and 3D plots. What about baby 1D plots that would be really nice for the kids? If I select a number using an interact widget, it would be nice to see a plot of a 1D real number line with the selected point appear as a big colored dot. Plots of solutions to inequalities like x 1 would be icing on the cake and involve the same big colored dot with a ray drawn to one side. Any examples somewhere? Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Does Sage do quotas or other protections in case users's calculation takes too long?
Does Sage do quotas or other protections in case users's calculation takes too long? I'm having nightmares of students crashing Sage servers or tying them up with simple little commands like so... 2^(2^(2^123456789)) and def f(x): while True: pass f(x) cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] How get last login time of a Sage notebook user?
How get last login time of a Sage notebook user? cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] How make typesetting be the default in all notebooks?
How make typesetting be the default in all notebooks? (i.e. I don't want users to have to check the Typeset checkbox all the time.) Sincerely, Chris Seberino P.S. I tried googling for it but could not find the answer. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: How make typesetting be the default in all notebooks?
On Sep 2, 3:20 pm, William Stein wst...@gmail.com wrote: Unfortunately, I don't think there is support for this feature at present. If there were, it would likely be implemented via the Settings link in the notebook for a given user. Just to make sure we are talking about the same thing So there is nothing I can add to init.sage that is equivalent to clicking the Typeset checkbox in a worksheet? Sincerely, Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: How make typesetting be the default in all notebooks?
On Sep 2, 6:49 pm, Jason Grout jason-s...@creativetrax.com wrote: Type pretty_print_default() in an input cell and press shift-enter. All future output will be typeset automatically. Can you try to put pretty_print_default() in the init.sage and see if that works? Jason Thankfully that works great. There is one potential tiny bug fyi I found If you alter typsetting with pretty_print_default, then it works fine but it does not magically add/remove the check in the checkbox of the worksheet. In other words, adding prety_print_default() to init.sage works but the worksheet still shows an unchecked Typeset box in a new worksheet which may confuse some users. I suppose a fix would require pretty_print_default invocations triggering some javascript code to add/remove the check? I don't know. Sincerely, Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Possible to do quizzes and/or practice problems in notebook?
Anyone know of any examples of doing quizzes and/or practice problems in Sage notebook worksheets? I'm imagining something where the worksheet asks a question and students can type in their answers to see if they are right or not. Links to example worksheets would be very much appreciated if such a beast exists. Sincerely, Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Is x (x) impossible with all implicit_multiplication levels? (Please help decode warning get.)
On Aug 22, 12:35 pm, William Stein wst...@gmail.com wrote: Also, I think f(x) is more explicit than f (x). I never use f (x) in Python code and wonder why it is even allowed in Python instead of raising an exception. Wow, that's almost as bad as I didn't put any cheese on the eggs for the vegan. which I just overheard hear at Sage Days 32 from the chef. Why? -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Is x (x) impossible with all implicit_multiplication levels? (Please help decode warning get.)
On Aug 22, 12:52 am, Maarten Derickx m.derickx.stud...@gmail.com wrote: I don't think your proposal will be an enhancement. For two reasons. 1. x (x) an x*(x) have the same amount of characters. Some people prefer implicit multiplication. It is already a feature of Sage. 2. currently the python and sage expressions are not white space dependant. Your suggestion would introduce such a whitespace dependancy and will be very unexpected for a lot of people if they just happen to do something like sin (pi). Sage is already whitespace dependent when you turn on implicit multiplication. Thanks for info. I posted on dev and will propose this as a new level for discussion there. cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Is x (x) impossible with all implicit_multiplication levels? (Please help decode warning get.)
On Aug 22, 3:32 am, Simon King simon.k...@uni-jena.de wrote: On 22 Aug., 04:37, Chris Seberino cseber...@gmail.com wrote: ... sin (pi) # rare, sin(pi) more likely f (3, 4) # rare, f(3, 4) more likely Likelihood is a not a good guideline, IMHO. I prefer rigour. Implicit multiplication is rigorous (or any remaining corner cases can be made so). Syntax is just interpreted differently. Hence, when you write f (3, 4), do you really mean that *both* blank spaces should trigger a multiplication? Do you really mean f multiplied with the tuple (3,) multiplied with 4? I proposed this on dev and it didn't immediately get shot down as crazy. I am only proposing parsing LETTER-WHITESPACE-LEFTPARENS differently. Hence 3, 4 would not be affected. And even when you write f (3,4) (with only one blank space): Do you really mean expression f multiplied with tuple (3,4)? What is the product of an expression with a tuple? In my proposal a function call with a space between the f and the tuple would not be allowed. Hence, your example would either give a result if the product of f and (3, 4) made sense, or, an error. That would be rigorous and preferred IMHO. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Is x (x) impossible with all implicit_multiplication levels? (Please help decode warning get.)
On Aug 22, 8:06 am, Simon King simon.k...@uni-jena.de wrote: But apparently other people find it practical to be able to write 2x instead of 2*x. The preference comes from years of using Mathematica. Also, I think a space looks cleaner and it is easier to type (no shift needed! :). Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Is x (x) impossible with all implicit_multiplication levels? (Please help decode warning get.)
On Aug 22, 10:28 am, v...@ukr.net wrote: It seems to me that interpreting the f (x) as f*x could easily confuse the people who are new to Python and Sage. They will read (or maybe have already read) some book on Python and the will try to apply their new knowledge in Sage, but instead will find some strange inexplicable (at first glance) behaviour. Wouldn't it be better to stick to Zen of Python rule #2 in this case? Explicit is better than implicit. As kcrisman said, this would only be an option. Also, I think f(x) is more explicit than f (x). I never use f (x) in Python code and wonder why it is even allowed in Python instead of raising an exception. cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Is x (x) impossible with all implicit_multiplication levels? (Please help decode warning get.)
I want x (x) to return x^2. It doesn't seem to work with any implicit_multiplication level. What does the following error mean? Does it mean this will get fixed in a future version? sage: x (x) /usr/local/sage-4.7/local/lib/python2.6/site-packages/IPython/iplib.py: 2073: DeprecationWarning: Substitution using function-call syntax and unnamed arguments is deprecated and will be removed from a future release of Sage; you can use named arguments instead, like EXPR(x=..., y=...) exec code_obj in self.user_global_ns, self.user_ns x cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Is x (x) impossible with all implicit_multiplication levels? (Please help decode warning get.)
On Aug 21, 1:03 pm, Simon King simon.k...@uni-jena.de wrote: If you have an object that is directly followed by parentheses, then in Python, which is the underlying language of Sage, it means function evaluation. Hence, when you write f(x) then you normally do NOT want to multiply f and x, but typically f is a function and you want to evaluate it at the point x. Simon Thanks for the info. I thought of a perfect solution. Rarely in Python or Sage, when people invoke functions, do they leave a space between the function name and the argument list e.g. sin (pi)# rare, sin(pi) more likely f (3, 4)# rare, f(3, 4) more likely What about a run level that parses f (3, 4) as implicit multiplication? Sincerely, Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Possible to run published worksheet without downloading it on same server?
Instead of downloading a published worksheet, is it possible to copy it to a user's account if it is on the SAME SERVER? If all students must download published worksheets, I fear the less tech-savvy will make mistakes that I'll need to address. Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Possible to run published worksheet without downloading it on same server?
awesome! thanks! cs On Jul 30, 2:08 am, Jason Grout jason-s...@creativetrax.com wrote: On 7/29/11 11:40 PM, Chris Seberino wrote: Instead of downloading a published worksheet, is it possible to copy it to a user's account if it is on the SAME SERVER? If all students must download published worksheets, I fear the less tech-savvy will make mistakes that I'll need to address. Yes. A person needs to log in to the server. When they view the published worksheet, it will say Edit a copy in the upper right corner. Click on that and it will copy the worksheet into your notebook and open it. Thanks, Jason -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Possible to make implicit multiplication allow (1 + 2) (3 + 4) ?
On Jun 24, 11:59 pm, Jason Grout jason-s...@creativetrax.com wrote: sage: implicit_mul('diff(f,x)(3)', level=10) 'diff(f,x)*(3)' which is definitely not what I intended. Jason Would you agree a good robust solution to your issue would be for an implicit_mul level that *ONLY* converted spaces to multiplication? In other words This should work... (1 + 2) (3 + 4) # Notice space between parens. This should/would give an error... (1 + 2)(3 + 4) # Notice no space between parens. I reread the implicit_mul docs at http://www.sagemath.org/doc/reference/sage/misc/preparser.html and I cannot find a level between 3 and 10 that does this. cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: %auto not automatically running code when upload notebook worksheet
Yes, as I said it starts automatically but it must have no descriptive comment above the cell. That is a worksheet with only one naked cell and no description in it. That's why I suggested to start a new worksheet from scratch. R OK I verified your solution. I have no clue how you figured that out but thanks! Was this intentional? What if someone wants to have descriptive text at the top of their worksheet? One solution is to add a blank cell between the descriptive text and the %auto cell. Is this going away or is this a desired thing? Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Possible to make implicit multiplication allow (1 + 2) (3 + 4) ?
I love implicit_multiplication(True) but I noticed it doesn't work between parens!? How make this work?... sage: (1 + 2) (3 + 4) --- TypeError Traceback (most recent call last) /home/seb/ipython console in module() TypeError: 'sage.rings.integer.Integer' object is not callable -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Possible to make implicit multiplication allow (1 + 2) (3 + 4) ?
Jason Thanks. Usually I google and read what I find. This one slipped my net. My apologies. I'll try harder to search. I see the may mangle call statements warning on the link you sent. I don't see an example of a mangling. I increased my level to 10 and tried to mangle something but I failed. Still not sure what I should watch out for... sage: n( sin( ( sin( .5 ) ) ) ) 0.461269555033181 sage: n( sin( ( sin( .5 ) cos( sin(.1) ) ) ) ) 0.459150207292798 cs On Jun 24, 7:57 am, Jason Grout jason-s...@creativetrax.com wrote: On 6/24/11 2:17 AM, Chris Seberino wrote: I love implicit_multiplication(True) but I noticed it doesn't work between parens!? How make this work?... sage: (1 + 2) (3 + 4) --- TypeError Traceback (most recent call last) /home/seb/ipython console inmodule() TypeError: 'sage.rings.integer.Integer' object is not callable Did you read the docs before you posted? There's a level specifier, and a warning in the docs about making that case work: http://www.sagemath.org/doc/reference/sage/misc/preparser.html#sage.m... Thanks, Jason -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: %auto not automatically running code when upload notebook worksheet
On Jun 22, 4:26 am, Rolf kamha...@googlemail.com wrote: Works with me, and you will see my enhancement to the code. The two variable thing. Rolf Thanks. Does your version automatically start up when you upload the worksheet? Your version works like mine but doesn't start automatically for me like mine still. cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: %auto not automatically running code when upload notebook worksheet
On Jun 21, 9:09 am, Rolf kamha...@googlemail.com wrote: This question may sound somehow out of place, but maybe you can offer some help. Where in the documentation did you find something about this fancy notation to include variables into your html()? I found it on one of the published worksheets not in official Sage docs. That may have been a bad thing to do. Is html(Some string with some Latex $x^2$) valid? x is %d % y is standard Python for having variables in strings. Perhaps that is not allowed here? The funny thing is my original code in Sci.sws works fine if you press evaluate. The *ONLY* problem is that it will not automatically run thanks to %auto. Does this new version where I moved the string tricks out of html sound better? (It still has the same problem in that it works when you press evaluate but doesn't automatically run.) %auto %hide @interact def _(exponent=(-6..6)): first_sentence = The Number: $%f$ % (5 * 10**exponent) second_sentence = In Scientific Notation: $5 \cdot 10^{%d}$ % exponent html(first_sentence) html(second_sentence) An to use two variables as in html('In Scientific Notation: ${%d} \cdot 10^{%d}$'%base%exponent) doesn't work either. I didn't see that in http://phil4.com/public/Sci.sws. I'm not sure where you saw that. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: notebooks perfect in Firefox but different issues in Chrome and Internet Explorer
On Jun 21, 7:58 am, kcrisman kcris...@gmail.com wrote: Let us know if this helps. I agree it is suboptimal. Since there may be other inconsistencies between browsers, it seems safer to just have all students use Firefox. That is fine with me. I had other unrelated browser incompatibility issues with some online conferencing software. Standardizing on Firefox seems like the cleanest way to go. Thanks for confirming it wasn't my fault. cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Problem with html('$\tan$') in notebook....Latex commands beginning with \t have problems?
On Jun 21, 7:56 am, kcrisman kcris...@gmail.com wrote: For clarification, this creates a raw string. You should also be able to use \\tan, which escapes the \ so that it doesn't have a special meaning to Python. I imagine similar issues are going to happen for Latex commands that begin with n and r then? :) -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] %auto not automatically running code when upload notebook worksheet
I created a little worksheet called http://phil4.com/public/sage/Scientific_Notation.sws to illustrate the problem. The single cell with code has this... %hide %auto @interact def _(exponent=(-6..6)): html('The Number: $%f$'%(5 * 10**exponent)) html('In Scientific Notation: $5 \cdot 10^{%d}$'%exponent) When I upload the worksheet, the interact widget is not running. I need to manually unhide the code to get an evaluate link I can click on. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Can't upload worksheets from URL. (Sage insists on browsing for a local file.)
When I try to type a URL for a worksheet to upload, I can't type. Instead, the browse popup appears and I'm forced to browse for a local file!!! Was the typing in the text field disabled somehow? cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Can't upload worksheets from URL. (Sage insists on browsing for a local file.)
Sorry. Dumb question. Nevermind. You need to type URLs on the second text box...NOT the first box which is for local files. :) cs On Jun 20, 11:04 am, kcrisman kcris...@gmail.com wrote: ?? You should be able to type a URL (ending in .sws or .txt or something like that) in the text area. I used that just the other day. What server are you using? Or, if local, what version? This could conceivably be related to the recent updating of the sagenb.org family of servers. On Jun 20, 11:15 am, Chris Seberino cseber...@gmail.com wrote: When I try to type a URL for a worksheet to upload, I can't type. Instead, the browse popup appears and I'm forced to browse for a local file!!! Was the typing in the text field disabled somehow? cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] How delete published worksheet if deleted original in your account folder?
How delete published worksheet if you already deleted the copy in your account folder? Normally I could just unpublish a worksheetbut since I deleted the original version, I can't do that!?!? Sincerely, Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Problem with html('$\tan$') in notebook....Latex commands beginning with \t have problems?
I display some Latex commands in HTML on the small worksheet below... http://phil4.com/public/Trig.sws Notice all the trig functions are fine except for tan. Is there a problem with Latex commands that begin with \t for some reason? Sincerely, Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: %auto not automatically running code when upload notebook worksheet
On Jun 20, 10:41 am, kcrisman kcris...@gmail.com wrote: Type %auto on a line by itself at the beginning of a cell to automatically evaluate the cell when the worksheet is first opened. kcrisman That works one one! Thanks! I made a little worksheet that %auto still doesn't seem to work on... http://phil4.com/public/Sci.sws Notice you still need to unhide code and click on evaluate to get interact widget to run. Sincerely, Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] notebooks perfect in Firefox but different issues in Chrome and Internet Explorer
http://phil4.com/public/Trig2.sws works perfectly in Firefox but has issues in Chrome and Internet Explorer. The slider of interact widget didn't work for one student in Internet Explorer. The html text was messed up for students using Chrome. It seems multiple lines were on top of each other. What is odd is that Chrome and Internet Explorer had different issues so switching between them would fix one problem but create another. Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: How configure notebook server to have ALL new worksheets for ALL users run some customizations?
Nevermind. I found out about $HOME/.sage/init.sage cs On Jun 13, 11:54 pm, Chris Seberino cseber...@gmail.com wrote: How configure notebook server to have ALL new worksheets for ALL users run some customizations? e.g. I want implicit_multiplication(True) to be global as well as var(a b c d e f g h z) and var(alpha beta gamma delta omega) cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] How fix this script to add accounts to notebook server?
I wrote the script below to automatically add accounts to my notebook server. I ran it as follows $SAGE_DIR/sage-python XXX YYY ZZZ for some values of XXX, YYY and ZZZ. When I tried to login with value in XXX for username and in YYY for password Sage notebook server did not recognize that account?? How fix? cs # import sage.all import sys username = sys.argv[1] password = sys.argv[2] email = sys.argv[3] directory = sage.all.tmp_dir() + .sagenb notebook = sage.all.sagenb.notebook.notebook.Notebook(directory) notebook.add_user(username, password, email, force = True) -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] sagenb.notebook.notebook.Notebook(tmp_dir()+'.sagenb') question
Sage notebooks docs here: http://www.sagemath.org/doc/reference/sagenb/notebook/notebook.html suggest creating a notebook object to manage notebook server in a script like so... nb = sagenb.notebook.notebook.Notebook(tmp_dir()+'.sagenb') Is this notebook handle necessary tied to my existing notebook server that is already running? The reason I'm asking is that my existing accounts don't seem to appear for this notebook handle. For example, nb.users() is empty. cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Must *all* notebook server pages be under SSL if server uses SSL?
On Jun 13, 4:43 pm, Michael Orlitzky mich...@orlitzky.com wrote: I don't know if there's a way to allow this, but why would you want to? When you log in -- presumably, over SSL, because you want to protect your password -- your browser is sent a session cookie that it uses to identify you in the future. If you switch to plain HTTP in the same session, your password won't be sent in plain text, but the session cookie will be, and that's almost as bad: an attacker can pretend he's you until you log out. You could do a delicate dance to try to ensure that only unprivileged data is sent across the plain-HTTP channel; but again, why? And is it worth the time it would take to implement it and the associated security risk? Michael Speed is one reason someone may want to only do the login with SSL. I just checked and when I log into PayPal, it stays in SSL mode. However, when I log into eBay, it jumps OUT of SSL mode. Godaddy seems to do some pages with SSL and some without SSL. Whenever these sites drop down to unencrypted, aren't they also insecure since eBay and Godaddy are sending cookies in the clear? Sincerely, Chris Seberino -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] How configure notebook server to have ALL new worksheets for ALL users run some customizations?
How configure notebook server to have ALL new worksheets for ALL users run some customizations? e.g. I want implicit_multiplication(True) to be global as well as var(a b c d e f g h z) and var(alpha beta gamma delta omega) cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Must *all* notebook server pages be under SSL if server uses SSL?
Is it correct that if one uses SSL for a notebook server than ALL the pages MUST be under SSL? The reason I'm asking is that the notebook server appears unable to handle Apache configs that try to switch from SSL to unencrypted after login. In other words, notebook is brittle when it comes to attempts to do anything fancy with Apache. cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Apache proxy in front of Sage notebook server works perfect until I turn on SSL.
Apache proxy in front of Sage notebook server works perfect until I turn on SSL. Different Apache configs give different Sage errors. Is there something special required to do Sage with Apache SSL proxy? cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Confusion and question about secure switch to Sage notebook.
Notebook documentation mentions a boolean switch called secure for SSL. When I try to turn it on my notebook server, I get an error about a domain Sage needs. How exactly does this switch work and how does Sage want to do SSL? In my limited experience, when I want SSL protection, I set up an Apache proxy (mod_proxy) in front of my app running on localhost. Obviously, if Sage's SSL worked that way then Sage would need more info that just toggling a boolean called secure so it must be doing things differently. Please advise. Sincerely, cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] How set up new accounts in a Python script? (instead of the notebook web form?)
How set up new accounts in a Python script? (instead of the notebook web form?) I would like to automate this process if possible. Thanks! cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: How set up new accounts in a Python script? (instead of the notebook web form?)
On May 27, 3:34 pm, Berkin Malkoc malk...@gmail.com wrote: It is in the reference:http://www.sagemath.org/doc/reference/sagenb/notebook/notebook.html Thank you. Those docs appear to be for a Sage session. I actually need it to work from a Django web application unrelated to Sage!?!? In other words, my question pertains to a Python script instead of a Sage session! Is this possible? Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: How use alternative authentication for notebook server?.(i.e. integrate with other web app?)..
Jason Thanks. Let me ask a related question. If you do not do authentication, then does every student just go to their own personal URL to access their notebook? What is that URL? In other words, I may be able to do what I want with URL magic. cs On May 26, 12:53 am, Jason Grout jason-s...@creativetrax.com wrote: On 5/26/11 12:35 AM, Chris Seberino wrote: My students authenticate themselves by signing into a classroom web app unrelated to Sage. Possible to integrate Sage notebook server with this classroom web app so students DO NOT have to authenticate a SECOND TIME with Sage login page? It depends on what webapp you are talking about. There is work to make the notebook work with OpenID, and there has been work before to make the notebook work with LDAP. The OpenID work is nearly complete and will probably be merged into Sage sometime this summer. Jason -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Not rebooting notebook server constantly leaves too many notebooks active?
Suppose different students sign into the same Sage server at different times. Won't that cause EVERY STUDENT's notebook to be in memory bogging down the server? I've been rebooting but maybe the smartest thing is to either... 1. Make students sign out? (Some will forget!!) 2. Autokill after 1 hour of inactivity? cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] How use alternative authentication for notebook server?.(i.e. integrate with other web app?)..
My students authenticate themselves by signing into a classroom web app unrelated to Sage. Possible to integrate Sage notebook server with this classroom web app so students DO NOT have to authenticate a SECOND TIME with Sage login page? Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Having trouble getting *ultra* high precision in this infinite sum calculation...
On Dec 13, 2:47 am, Simon King simon.k...@uni-jena.de wrote: sage: 2*sum(10^(-k^2/d) for k in range(1,2)) 2.02019722722490674759723772962542922944721452394745083...e-1 So there is a small progress in the summation! But I have no idea whether at the end of the day the small progress will be enough to cover the big difference -1.27897692436818e-13 to your theoretical result. Thanks. I agree. Because your result is s small I'm also not sure where the problem lies. I happen to know from that paper that the 2 sides of the candidate identity agree to 18,000 digits before the error occurs!!! cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Need help using RealField to get 18000 digits of accuracy in infinite sum...
In a previous post I was told to use RealField if I wanted very high degrees of accuracy. I'm still now sure I'm using RealField right and would appreciate any help debugging my puzzle. sage: constant = 100*sqrt(pi/log(10.0)) sage: f(k) = 10^(-k^2/1.0) sage: N = 1 sage: RealField(10)(sum(f(k) for k in range(-N, N))- constant) The infinite sum should agree with the constant to over 18000 digits. As I increase the value of N and the size of the mantissa I can't seem to ever get more than around 13 digits of agreement. (Context can be found at top of page 2 of this paper: http://arxiv.org/abs/math.GM/0409014/ ) Sincerely, Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Need help using RealField to get 18000 digits of accuracy in infinite sum...
On Dec 13, 1:09 pm, kcrisman kcris...@gmail.com wrote: I think you would have to let k be in that RealField, wouldn't you? Or at least f(k). That might be part of the issue. If you put the whole sum in RealField, the precision will be that of 1.0, I suppose (?) ... How do you put k in the RealField? Notice the variable I named constant also has a 10.0. I don't know if that is a problem. Is there an easy way to just make EVERYTHING have high precision to be safe? I tried eliminating my definitions and doing all on one line but it didn't improve things... RealField(10)( sum(10^(-k^2/1.0) for k in range(-1,1)) - 100*sqrt(pi/log(10.0)) ) cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Need help using RealField to get 18000 digits of accuracy in infinite sum...
OK thanks for your help. I think I got it. The effect of RealField is like creating a new number type. I need to make sure all my real are of the right type. It appears integers are fine as is. Here is working code... def test(big): my_pi = RealField(big)(pi) ten= RealField(big)(10.0) constant = 100 * sqrt(my_pi/log(ten)) ten_thou = RealField(big)(1.0) f(k) = ten^(-k^2/ten_thou) the_sum= RealField(big)(sum(f(k) for k in range(-big, big + 1))) difference = the_sum - constant return difference I can see difference getting smaller for test(1000), test(2000), test(3000), etc. cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Having trouble getting *ultra* high precision in this infinite sum calculation...
I wanted to confirm that a certain infinite sum agrees with a certain number to thousands of digits of accuracy. I know this is true from a fascinating formula at the top of page 2 of the paper referenced here: http://arxiv.org/abs/math.GM/0409014/ The following one liner outputs the error in the sum sage: n(100*sqrt(pi/log(10.0))-sum(10^(-k^2/1.0) for k in range(-1,1))) -1.27897692436818e-13 My finite sum should approximate the infinite sum more accurately as I change the 1 to 2 but it does not sage: n(100*sqrt(pi/log(10.0))-sum(10^(-k^2/1.0) for k in range(-2,2))) -1.27897692436818e-13 Why isn't the error improving as I increase the number of terms that are summed? Am I doing something wrong in Sage? (Yes it is possible that this infinite sum converges unimaginably slowly so I wanted to check first I wasn't doing something dumb.) Thanks, Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Idea for Sage notebooks ( question on getting funding to write these)
Does there exist Sage notebooks for high school subjects like algebra, geometry and precalculus that are so thorough that they are basically like interactive textbooks? CalculusMathematica seems to be an innovative program to create similar interactive textbooks for Mathematica for calculus. Anyone know of such a project or if NSF or anyone else would be interested in funding development of such Sage interactive textbooks? Sincerely, Dr. Chris Seberino ch...@phil4.com -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] My Sage server slow even when just 3 people on dedicated machine!? How fix?
I have a dedicated Xen Ubuntu virtual machine with 0.5 Gb RAM and Intel Xeon 2.27GHz CPU. The bandwidth is pretty good. (linode.com is my hosting provider.) Why even with just 3 people we sometimes get the green bar while Sage processes the calculuation? I often tell students that means they need to wait about 30-60seconds for the result. What is the bottlenecks to speed things up here? Thanks! Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: What's easiest way to get Sage running on Windows for non-techie students?
On Oct 9, 7:24 pm, Jason Grout jason-s...@creativetrax.com wrote: [1]http://sagemath.org/download-windows.html That link has a WinZip'd VMWare blob that works fine. I didn't even read the directions...I just double clicked on binaries in the extracted directory until a VMWare Linux virtual session appeared with a Sage icon. That is more than I was expecting and more than adequate. We are all high powered computer junkies but I'm afraid my students may get stuck on how to use WinZip and other minor details. If no one has made a little YouTube video I may make one on how to perform these few minimal steps. Great work! Chris -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: What's easiest way to get Sage running on Windows for non-techie students?
On Oct 9, 7:24 pm, Jason Grout jason-s...@creativetrax.com wrote: Oh wait. I see your point now. *I* didn't have to install VMWare because I probably installed it a long time ago. I assumed that meant you didn't need to install VMWare anymore. Yeaa video would be nice for that extra step too. cs -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] What's easiest way to get Sage running on Windows for non-techie students?
What's easiest way to get Sage running on Windows for non-techie students? They'll be lost if the instructions are complicated. Possible to wrap a VMWare + Ubuntu + Sage blob into one big Windows exe file that requires no set up? -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Workaround or way to avoid notebook TinyMCE bug of shuffling/deleting text?
On Oct 27, 1:44 pm, William Stein wst...@gmail.com wrote: (3) install the posted binary, then type the following in SAGE_ROOT rm spkg/installed/mpir* spkg/installed/atlas*; make Beautiful! It worked. You seemed to have known that this was the cause of Illegal Instruction errors. Would it be a good idea to make the binary automatically detect a problem with these 2 packages and print instructions like what you provided in this email? Thanks! cs --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Workaround or way to avoid notebook TinyMCE bug of shuffling/deleting text?
I understand there is a well know bug in how Sage interacts with TinyMCE that causes text to be shuffled around or deleted. Is there a workaround or way to avoid this? (The latest version of Sage won't install on Ubuntu 9.04 for me w/o getting Illegal Instruction errors so that isn't an option.) Chris --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org -~--~~~~--~~--~--~---