[sage-support] Re: Help me out from PolynomialRing Error!
Dear Sajan.S,
On Apr 28, 6:31 am, "Sajan.S" wrote:
> Dear sir,
>
> P.< y0, y1, x0, x1> = PolynomialRing(GF(3),4,order='lex');
>
> is working in interactive python shell.
>
> but not working in python script file executed at command prompt
This is because the interactive shell has a preparser. Here you can
see what the preparser returns when you type your command in the
interactive shell:
sage: preparse("P.< y0, y1, x0, x1> = PolynomialRing(GF(3),
4,order='lex')")
"P = PolynomialRing(GF(Integer(3)),Integer(4),order='lex', names=
('y0', 'y1', 'x0', 'x1',)); (y0, y1, x0, x1,) = P._first_ngens(4)"
Python only sees the output of the preparser. In your script, you can
provide this output, and it will work.
Best regards,
Simon
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[sage-support] Help me out from PolynomialRing Error!
Dear sir, P.< y0, y1, x0, x1> = PolynomialRing(GF(3),4,order='lex'); is working in interactive python shell. but not working in python script file executed at command prompt Error Message is: Code: File "test.py", line 10 P.< y0, y1, y2, x0, x1, x2> = PolynomialRing(GF(2), 6,order='lex'); ^ SyntaxError: invalid syntax Please help me out, by suggesting an alternative quickfix for the problem. Thanks & Regards, Sajan.S --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] GAP still doesn't start in sage-3.4.1...
Hi, I saw in trac that the ticket about my problem to start Sage in a Debian Lenny 64bit is closed since GAP was downgraded. I thought Sage-3.4.1 should now works on my server... but it still doesn't. And the problem is still the same. When I run sage for the first time, I got: * RuntimeError: Unable to start gap because the command 'gap -r -b -p -T -o G /users/asspro/oudinet/projects/sage-3.4.1-linux-Debian_GNU_Linux_5.0_lenny-sse2-x86_64-Linux/data//extcode/gap/sage.g' failed. Error importing ipy_profile_sage - perhaps you should run %upgrade? WARNING: Loading of ipy_profile_sage failed. * Any clue? -- Johan --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] differential equations in SAGE
Dear SAGE experts,
from the output of desolve?? command I understand that desolve call
maxima and ode2 to solve ordinary differential equations.
1. How can I get the access to method variable?
commands
maxima("ode2('diff(y,x)=x^6*cos(y),y,x)")
maxima('method')
give the answer "separable", but the code
y = function('y', x)
A=desolve(diff(y,x) == x^2*y^2, y)
B=desolve(diff(y,x) == x*y+5, y)
show(A)
print(type(A))
print(maxima('method'))
show(B)
print(type(B))
print(maxima('method'))
does not work (prints "method" if called for the first time and
"separable", if called after the first group of commands)
2. Another observation: if the equation is linear or Bernoulli, the
solution of ODE is of the type , if the equation is
separable or homogeneous, the solution is
. I think, we should
get the same type of the answer in both cases. Is this a bug?
Thank you for your comments and suggestions
Robert
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[sage-support] Re: differential equations in SAGE
On 28 Dub, 15:42, "ma...@mendelu.cz" wrote: > Dear SAGE experts, > forgot to write: the test notebook for these issues is at http://www.sagenb.org/home/pub/494/ Robert --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Help me out from PolynomialRing Error!
On Tue, Apr 28, 2009 at 3:14 AM, wrote:
>
> Dear Sajan.S,
>
> On Apr 28, 6:31 am, "Sajan.S" wrote:
>> Dear sir,
>>
>> P.< y0, y1, x0, x1> = PolynomialRing(GF(3),4,order='lex');
>>
>> is working in interactive python shell.
>>
>> but not working in python script file executed at command prompt
You could also try naming your script something.sage, then loading it
into sage using
sage: load something.sage
William
>
> This is because the interactive shell has a preparser. Here you can
> see what the preparser returns when you type your command in the
> interactive shell:
>
> sage: preparse("P.< y0, y1, x0, x1> = PolynomialRing(GF(3),
> 4,order='lex')")
> "P = PolynomialRing(GF(Integer(3)),Integer(4),order='lex', names=
> ('y0', 'y1', 'x0', 'x1',)); (y0, y1, x0, x1,) = P._first_ngens(4)"
>
> Python only sees the output of the preparser. In your script, you can
> provide this output, and it will work.
>
> Best regards,
> Simon
> >
>
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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[sage-support] weird output in notebook (on jaunty installation via debs)
Hello, I have sage on fresh Ubuntu jaunty, SAGE Version 3.0.5, Release Date: 2008-07-11 but when I use notebook, I get unnecessary output and line endings of it seem like have encoding problems.. you see the screenshot.. http://files.akl.lt/users/jurgis/etc/sagemath-jaunty-weird_output.png where's the rub? --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: weird output in notebook (on jaunty installation via debs)
On Tue, Apr 28, 2009 at 7:12 AM, Jurgis Pralgauskis wrote: > > Hello, > > I have sage on fresh Ubuntu jaunty, > SAGE Version 3.0.5, Release Date: 2008-07-11 > > but when I use notebook, I get unnecessary output > and line endings of it seem like have encoding problems.. > > you see the screenshot.. > http://files.akl.lt/users/jurgis/etc/sagemath-jaunty-weird_output.png > > where's the rub? Hi, Unfortunately, Debian/Ubuntu package a very old and buggy version of Sage.You should use a version of Sage that you download from http://sagemath.org instead. Get either a binary, or build from source. Thanks! William -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org > > > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] substituting initial condition into ODE
Dear memebers of SAGE-support
I wonder if it is possible to substitute initial conditions into an
equation produced by desolve. I tried something like
y=function('y',x)
desolve(diff(y,x)+sin(x)*y^6==0,y)
sol({x:pi,y:9})
and got
1/(5*y(pi)^5) == c + 1
but I would like to see
1/(5*9^5) == c + 1
many thanks
Robert
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[sage-support] Re: substituting initial condition into ODE
I don't know if you are asking about how to use ICs in
desolve or if you are asking about how to do substitutions.
Anyway, I get this:
sage: y=function('y',x)
sage: desolve(diff(y,x)+sin(x)*y^6==0,y)
1/(5*y(x)^5) == c - cos(x)
sage: desolve(diff(y,x)+sin(x)*y^6==0,y,[pi,9])
1/(5*y(x)^5) == (-295245*cos(x) - 295244)/295245
Does that help?
On Tue, Apr 28, 2009 at 10:36 AM, ma...@mendelu.cz wrote:
>
> Dear memebers of SAGE-support
>
> I wonder if it is possible to substitute initial conditions into an
> equation produced by desolve. I tried something like
>
> y=function('y',x)
> desolve(diff(y,x)+sin(x)*y^6==0,y)
> sol({x:pi,y:9})
>
> and got
>
> 1/(5*y(pi)^5) == c + 1
>
>
> but I would like to see
>
>
> 1/(5*9^5) == c + 1
>
> many thanks
>
> Robert
>
>
> >
>
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[sage-support] Re: sage error 6520
Yes, I recompiled it and it works. It took 7 hours on the P4. On Apr 27, 9:53 am, Mikie wrote: > Hi, > > I just put Sage3.4.1 on and I am getting "line 198: 3626 Illegral > instruction sage-ip0ython "#@" -i.". Do you think I should get the > source and recompile it? > Mikie > > On Apr 25, 1:01 am, mabshoff > > > dortmund.de> wrote: > > On Apr 24, 2:55 pm, mabshoff > > dortmund.de> wrote: > > > Hi, > > > > Sage 3.4.1 which binaries I should post in the next couple hours has > > > been build to use only SSE2, so that one should work for you. > > > Who would have thought, but it took longer than planned. Anyway, 32 as > > well as 64 bit SSE2 only Centos binaries are in > > > http://www.sagemath.org/bin/linux/ > > > > Cheers, > > > > Michael > > > Cheers, > > > Michael- Hide quoted text - > > - Show quoted text - --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: substituting initial condition into ODE
Hello, I just want to test, if I can do with my students in computer
lab what they usualy do on the paper
1. find general solution
2. substitute from initail conditions
3. find c
4. use this c in general solution
I agree that this may be strange to do this in the case, we have a
command for solving IVP.
I just wanted to know, if it is possible to substitute some value for y
(x), if y(x) is declared as a function.
Thanks. Robert
On 28 Dub, 16:45, David Joyner wrote:
> I don't know if you are asking about how to use ICs in
> desolve or if you are asking about how to do substitutions.
> Anyway, I get this:
>
> sage: y=function('y',x)
> sage: desolve(diff(y,x)+sin(x)*y^6==0,y)
> 1/(5*y(x)^5) == c - cos(x)
> sage: desolve(diff(y,x)+sin(x)*y^6==0,y,[pi,9])
> 1/(5*y(x)^5) == (-295245*cos(x) - 295244)/295245
>
> Does that help?
>
> On Tue, Apr 28, 2009 at 10:36 AM, ma...@mendelu.cz wrote:
>
> > Dear memebers of SAGE-support
>
> > I wonder if it is possible to substitute initial conditions into an
> > equation produced by desolve. I tried something like
>
> > y=function('y',x)
> > desolve(diff(y,x)+sin(x)*y^6==0,y)
> > sol({x:pi,y:9})
>
> > and got
>
> > 1/(5*y(pi)^5) == c + 1
>
> > but I would like to see
>
> > 1/(5*9^5) == c + 1
>
> > many thanks
>
> > Robert
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[sage-support] Re: weird output in notebook (on jaunty installation via debs)
> Unfortunately, Debian/Ubuntu package a very old and buggy version of > Sage. You should use a version of Sage that you download > fromhttp://sagemath.orginstead. Get either a binary, or build from > source. why are debs not updated? I don't know much about them, and as I remember main packaging is "spkg", would it be hard to automate transformationt to debs? this would mean more courage for sysadmins towards sage (as updates would be supposed to be without headache :) ) --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: weird output in notebook (on jaunty installation via debs)
On Tue, Apr 28, 2009 at 11:34 AM, Jurgis Pralgauskis wrote: > > >> Unfortunately, Debian/Ubuntu package a very old and buggy version of >> Sage. You should use a version of Sage that you download >> fromhttp://sagemath.orginstead. Get either a binary, or build from >> source. > > why are debs not updated? > I don't know much about them, and as I remember main packaging is > "spkg", > would it be hard to automate transformationt to debs? > this would mean more courage for sysadmins towards sage (as updates > would be supposed to be without headache :) ) Please see: http://wiki.sagemath.org/faq/bigsagerant William --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: substituting initial condition into ODE
Too tricky, but maybe this helps:
sage: c,x = var("c,x")
sage: y = function('y',x)
sage: soln = desolve(diff(y,x)+sin(x)*y^6==0,y); soln
1/(5*y(x)^5) == c - cos(x)
sage: soln.subs(x = pi)
1/(5*y(pi)^5) == c + 1
sage: ssoln = soln.__repr__(); ssoln
'1/(5*y(x)^5) == c - cos(x)'
sage: ssoln = ssoln.replace("y(x)","9"); ssoln
'1/(5*9^5) == c - cos(x)'
sage: ssoln = ssoln.replace("x","pi"); ssoln
'1/(5*9^5) == c - cos(pi)'
sage: nsoln = eval(ssoln)
sage: nsoln
c + 1 == 0
Hopefully there are better ways.
Using SymPy:
sage: x = Symbol('x')
sage: C1 = Symbol('C1')
sage: y = Function('y')
sage: soln = dsolve(Derivative(y(x),x)+sin(x)*y(x)^6,y(x)); soln
(C1 - 5*cos(x))**(-1/5)
sage: ypi = soln.subs(x,pi); ypi
(5 + C1)**(-1/5)
But now
sage: solve(ypi - 9, C1)
yields an error which I don't understand.
On Tue, Apr 28, 2009 at 1:59 PM, ma...@mendelu.cz wrote:
>
> Hello, I just want to test, if I can do with my students in computer
> lab what they usualy do on the paper
>
> 1. find general solution
> 2. substitute from initail conditions
> 3. find c
> 4. use this c in general solution
>
> I agree that this may be strange to do this in the case, we have a
> command for solving IVP.
> I just wanted to know, if it is possible to substitute some value for y
> (x), if y(x) is declared as a function.
>
> Thanks. Robert
>
> On 28 Dub, 16:45, David Joyner wrote:
>> I don't know if you are asking about how to use ICs in
>> desolve or if you are asking about how to do substitutions.
>> Anyway, I get this:
>>
>> sage: y=function('y',x)
>> sage: desolve(diff(y,x)+sin(x)*y^6==0,y)
>> 1/(5*y(x)^5) == c - cos(x)
>> sage: desolve(diff(y,x)+sin(x)*y^6==0,y,[pi,9])
>> 1/(5*y(x)^5) == (-295245*cos(x) - 295244)/295245
>>
>> Does that help?
>>
>> On Tue, Apr 28, 2009 at 10:36 AM, ma...@mendelu.cz wrote:
>>
>> > Dear memebers of SAGE-support
>>
>> > I wonder if it is possible to substitute initial conditions into an
>> > equation produced by desolve. I tried something like
>>
>> > y=function('y',x)
>> > desolve(diff(y,x)+sin(x)*y^6==0,y)
>> > sol({x:pi,y:9})
>>
>> > and got
>>
>> > 1/(5*y(pi)^5) == c + 1
>>
>> > but I would like to see
>>
>> > 1/(5*9^5) == c + 1
>>
>> > many thanks
>>
>> > Robert
> >
>
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[sage-support] RSACryptosystem in Cryptography book (by Kohel) is ghost :? + small typo
Hello, just trying to follow examples of http://www.sagemath.org/library/crypto.pdf Exercise 8.5 solution: page nr 124 (or 127 for file) has suspicious code sage: E := RSACryptosystem(128) sage: m = E.encoding(’The dog ate my lunch.’); m first of all typo of assignment (seems like in Pascal) then no such Class/method seems to exists -- not a big problem, but just curiuous what happend to it.. In advance Thanks for explanations :) --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] scipy.stats.poisson.pmf doesn't work
On two different computers running Ubuntu 9.04, I downloaded and built from source sage 3.4.1. I also downloaded scipy using the synaptic package manager. I am under the impression that python and scipy in sage lead completely separate lives from python and scipy outside sage. In normal python (i.e. running python from the command line), the following works fine: Python 2.6.2 (release26-maint, Apr 19 2009, 01:56:41) [GCC 4.3.3] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import scipy.stats >>> scipy.stats.poisson.pmf(5,1) 0.00306566200976202 But when I run sage, I get the following: -- | Sage Version 3.4.1, Release Date: 2009-04-21 | | Type notebook() for the GUI, and license() for information.| -- sage: import scipy.stats sage: scipy.stats.poisson.pmf(5,1) --- TypeError Traceback (most recent call last) /home/awalker/sage-3.4.1/ in () /home/awalker/sage-3.4.1/local/lib/python2.5/site-packages/scipy/stats/ distributions.pyc in pmf(self, k, *args, **kwds) 3517 output = zeros(shape(cond),'d') 3518 place(output,(1-cond0)*(cond1==cond1),self.badvalue) -> 3519 goodargs = argsreduce(cond, *((k,)+args)) 3520 place(output,cond,self._pmf(*goodargs)) 3521 return output /home/awalker/sage-3.4.1/local/lib/python2.5/site-packages/scipy/stats/ distributions.pyc in argsreduce(cond, *args) 237 # make sure newarr is not a scalar 238 newarr = atleast_1d(args[k]) --> 239 newargs[k] = extract(cond,newarr*expand_arr) 240 return newargs 241 TypeError: unsupported operand type(s) for *: 'numpy.ndarray' and 'numpy.bool_' --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: scipy.stats.poisson.pmf doesn't work
Hello,
On Tue, Apr 28, 2009 at 12:29 PM, Alden wrote:
>
> On two different computers running Ubuntu 9.04, I downloaded and built
> from source sage 3.4.1. I also downloaded scipy using the synaptic
> package manager. I am under the impression that python and scipy in
> sage lead completely separate lives from python and scipy outside
> sage. In normal python (i.e. running python from the command line),
> the following works fine:
This is correct.
> sage: import scipy.stats
> sage: scipy.stats.poisson.pmf(5,1)
When you type this, what get sent to Sage is the output of
sage: preparse('scipy.stats.poisson.pmf(5,1)')
'scipy.stats.poisson.pmf(Integer(5),Integer(1))'
Numpy/Scipy don't know how to deal with Sage's Integer class. You can
get around this in a number of ways:
1) Use the "r" notation for "raw" Python ints:
sage: preparse('scipy.stats.poisson.pmf(5r,1r)')
'scipy.stats.poisson.pmf(5,1)'
sage: scipy.stats.poisson.pmf(5r,1r)
array(0.00306566200976202)
2) Explicitly make ints:
sage: scipy.stats.poisson.pmf(int(5),int(1))
array(0.00306566200976202)
3) Turn off the preparser:
sage: preparser(False)
sage: scipy.stats.poisson.pmf(5,1)
array(0.00306566200976202)
sage: preparser(True)
4) Set Integer to be int (and RealNumber to be Float):
sage: Integer = int
sage: RealNumber = float
sage: scipy.stats.poisson.pmf(5,1)
array(0.00306566200976202)
--Mike
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[sage-support] Re: scipy.stats.poisson.pmf doesn't work
On Tue, Apr 28, 2009 at 12:29 PM, Alden wrote: > > On two different computers running Ubuntu 9.04, I downloaded and built > from source sage 3.4.1. I also downloaded scipy using the synaptic > package manager. I am under the impression that python and scipy in > sage lead completely separate lives from python and scipy outside > sage. True. > In normal python (i.e. running python from the command line), > the following works fine: This will evidently get fixed when we upgrade the version of scipy included in Sage, which we hope to do soon. > > Python 2.6.2 (release26-maint, Apr 19 2009, 01:56:41) > [GCC 4.3.3] on linux2 > Type "help", "copyright", "credits" or "license" for more information. import scipy.stats scipy.stats.poisson.pmf(5,1) > 0.00306566200976202 > > But when I run sage, I get the following: > -- > | Sage Version 3.4.1, Release Date: 2009-04-21 | > | Type notebook() for the GUI, and license() for information. | > -- > sage: import scipy.stats > sage: scipy.stats.poisson.pmf(5,1) > --- > TypeError Traceback (most recent call > last) > > /home/awalker/sage-3.4.1/ in () > > /home/awalker/sage-3.4.1/local/lib/python2.5/site-packages/scipy/stats/ > distributions.pyc in pmf(self, k, *args, **kwds) > 3517 output = zeros(shape(cond),'d') > 3518 place(output,(1-cond0)*(cond1==cond1),self.badvalue) > -> 3519 goodargs = argsreduce(cond, *((k,)+args)) > 3520 place(output,cond,self._pmf(*goodargs)) > 3521 return output > > /home/awalker/sage-3.4.1/local/lib/python2.5/site-packages/scipy/stats/ > distributions.pyc in argsreduce(cond, *args) > 237 # make sure newarr is not a scalar > 238 newarr = atleast_1d(args[k]) > --> 239 newargs[k] = extract(cond,newarr*expand_arr) > 240 return newargs > 241 > > TypeError: unsupported operand type(s) for *: 'numpy.ndarray' and > 'numpy.bool_' > > > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: scipy.stats.poisson.pmf doesn't work
On Tue, Apr 28, 2009 at 12:35 PM, William Stein wrote:
> On Tue, Apr 28, 2009 at 12:29 PM, Alden wrote:
>>
>> On two different computers running Ubuntu 9.04, I downloaded and built
>> from source sage 3.4.1. I also downloaded scipy using the synaptic
>> package manager. I am under the impression that python and scipy in
>> sage lead completely separate lives from python and scipy outside
>> sage.
>
> True.
>
>> In normal python (i.e. running python from the command line),
>> the following works fine:
>
> This will evidently get fixed when we upgrade the version of scipy
> included in Sage, which we
> hope to do soon.
>
Mike's solution is right and my remark isn't. I had tested resetting
Integer by doing the following
in a notebook cell:
{{{
RealNumber=float; Integer=int
import scipy.stats
scipy.stats.poisson.pmf(5,1)
}}}
However, stupidly Integer=int gets evaluated after the constant 5 gets
factored out. This would have worked
{{{
RealNumber=float; Integer=int
}}}
{{{
import scipy.stats
scipy.stats.poisson.pmf(5,1)
}}}
We *really* need to patch scipy.stats so that this fixed...
-- William
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[sage-support] Re: scipy.stats.poisson.pmf doesn't work
Thanks! On Apr 28, 12:29 pm, Alden wrote: > On two different computers running Ubuntu 9.04, I downloaded and built > from source sage 3.4.1. I also downloaded scipy using the synaptic > package manager. I am under the impression that python and scipy in > sage lead completely separate lives from python and scipy outside > sage. In normal python (i.e. running python from the command line), > the following works fine: > > Python 2.6.2 (release26-maint, Apr 19 2009, 01:56:41) > [GCC 4.3.3] on linux2 > Type "help", "copyright", "credits" or "license" for more information.>>> > import scipy.stats > >>> scipy.stats.poisson.pmf(5,1) > > 0.00306566200976202 > > But when I run sage, I get the following: > -- > | Sage Version 3.4.1, Release Date: 2009-04-21 | > | Type notebook() for the GUI, and license() for information. | > -- > sage: import scipy.stats > sage: scipy.stats.poisson.pmf(5,1) > --- > TypeError Traceback (most recent call > last) > > /home/awalker/sage-3.4.1/ in () > > /home/awalker/sage-3.4.1/local/lib/python2.5/site-packages/scipy/stats/ > distributions.pyc in pmf(self, k, *args, **kwds) > 3517 output = zeros(shape(cond),'d') > 3518 place(output,(1-cond0)*(cond1==cond1),self.badvalue) > -> 3519 goodargs = argsreduce(cond, *((k,)+args)) > 3520 place(output,cond,self._pmf(*goodargs)) > 3521 return output > > /home/awalker/sage-3.4.1/local/lib/python2.5/site-packages/scipy/stats/ > distributions.pyc in argsreduce(cond, *args) > 237 # make sure newarr is not a scalar > 238 newarr = atleast_1d(args[k]) > --> 239 newargs[k] = extract(cond,newarr*expand_arr) > 240 return newargs > 241 > > TypeError: unsupported operand type(s) for *: 'numpy.ndarray' and > 'numpy.bool_' --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: scipy.stats.poisson.pmf doesn't work
William Stein wrote: > >> In normal python (i.e. running python from the command line), >> the following works fine: > > This will evidently get fixed when we upgrade the version of scipy > included in Sage, which we > hope to do soon. Are you saying this is already fixed in scipy (i.e., a new scipy will recognize sage numbers)? Thanks, Jason -- Jason Grout --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: scipy.stats.poisson.pmf doesn't work
No. On 4/28/09, Jason Grout wrote: > > William Stein wrote: > >> >>> In normal python (i.e. running python from the command line), >>> the following works fine: >> >> This will evidently get fixed when we upgrade the version of scipy >> included in Sage, which we >> hope to do soon. > > > Are you saying this is already fixed in scipy (i.e., a new scipy will > recognize sage numbers)? > > Thanks, > > Jason > > > -- > Jason Grout > > > > > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: snapshot saving
On Tue, Apr 28, 2009 at 1:45 PM, Franco Saliola wrote: > On Mon, Apr 27, 2009 at 9:07 PM, William Stein wrote: >> >> On Mon, Apr 27, 2009 at 11:45 AM, Jason Grout >> wrote: >>> >>> William Stein wrote: On Mon, Apr 27, 2009 at 11:29 AM, kcrisman wrote: > Just as a postscript, I was really glad to have the autosave a few > minute ago, where I nearly deleted an entire lecture's worth of notes > and computations which I hadn't saved, by accidentally brushing > against a browser shortcut to a "favorites" page on the wrong window. > (This could happen with "reload" or other shortcuts, too, I suspect.) > When I used the browser "back" button, I had literally nothing, but > the autosave had captured my previous revision! You could have just pressed reload and you would have had your worksheet back entirely. It was still sitting there on the server in RAM. Never use the back button with the sage notebook, unless you immediately press refresh. >>> >>> Tom or some other javascript ninja: >>> >>> Isn't there some sort of javascript that disables the back button? >>> That's a common problem in web applications, and I'd be very surprised >>> if it isn't a solved problem already. >>> >>> Jason >>> >> >> Not, there is no javascript to do that. Also, disabling the back >> button is irrelevant to the above problem, which would only have been >> prevented by disabling being able to leave the page by clicking on a >> favorites. There is javascript to attempt to prevent users from >> leaving pages -- lots of spam sites use it. Of course it doesn't work >> well though, and is often extremely annoying. > > I am using GMail. I hit reply. I typed this. Now I am going to hit the > browser's back button... > > I'm still here. So Google can do it. They did not disable the back button. They are calling a javascript function on leaving the page, which could be via the back button, clicking a link, etc. The Sage notebook could also popup a dialog when you try to leave a worksheet page. > It presented me with a warning: > > Your draft has been modified. > > Abandon changes? > > See the attached screenshot. > > Franco > > -- > > > > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] pretty print in notebook
I have sage working on a PC in my network. And it comes great. When set "pretty print" and do an integral it gives an error shows Latex. How do I get the pretty print. I am using CentOS and Firefox. --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: snapshot saving
Franco -- On Tue, Apr 28, 2009 at 11:22 PM, William Stein wrote: > > On Tue, Apr 28, 2009 at 1:45 PM, Franco Saliola wrote: >> On Mon, Apr 27, 2009 at 9:07 PM, William Stein wrote: >>> >>> On Mon, Apr 27, 2009 at 11:45 AM, Jason Grout >>> wrote: William Stein wrote: > On Mon, Apr 27, 2009 at 11:29 AM, kcrisman wrote: >> Just as a postscript, I was really glad to have the autosave a few >> minute ago, where I nearly deleted an entire lecture's worth of notes >> and computations which I hadn't saved, by accidentally brushing >> against a browser shortcut to a "favorites" page on the wrong window. >> (This could happen with "reload" or other shortcuts, too, I suspect.) >> When I used the browser "back" button, I had literally nothing, but >> the autosave had captured my previous revision! > > You could have just pressed reload and you would have had your > worksheet back entirely. It was still sitting there on the server in > RAM. Never use the back button with the sage notebook, unless you > immediately press refresh. > Tom or some other javascript ninja: Isn't there some sort of javascript that disables the back button? That's a common problem in web applications, and I'd be very surprised if it isn't a solved problem already. Jason >>> >>> Not, there is no javascript to do that. Also, disabling the back >>> button is irrelevant to the above problem, which would only have been >>> prevented by disabling being able to leave the page by clicking on a >>> favorites. There is javascript to attempt to prevent users from >>> leaving pages -- lots of spam sites use it. Of course it doesn't work >>> well though, and is often extremely annoying. >> >> I am using GMail. I hit reply. I typed this. Now I am going to hit the >> browser's back button... >> >> I'm still here. So Google can do it. > > They did not disable the back button. They are calling a javascript > function on leaving the page, which could be via the back button, > clicking a link, etc. The Sage notebook could also popup a dialog when > you try to leave a worksheet page. Right, sorry. I misunderstood and didn't realize that the goal was to disable the back button. I think it might be a good idea to pop-up a dialog when one tries to leave a worksheet if it hasn't been saved. Franco -- --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] callable symbolic function name to string
Hi all:
How do you retrieve the name of a callable symbolic function as a
string? For instance, suppose you have
sage: f= function('hello',x)
and you want to retrieve 'hello' from f.
sage: str(f)
'\n hello(x)'
followed by stripping away the extra characters works, but is there a
more direct approach?
Alex
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[sage-support] Re: callable symbolic function name to string
There's probably a better way, but this works:
sage: f = function('hello',x)
sage: f._f._name
'hello'
(That's just what f._repr_() uses.)
-cc
On Tue, Apr 28, 2009 at 8:30 PM, Alex Raichev wrote:
>
> Hi all:
>
> How do you retrieve the name of a callable symbolic function as a
> string? For instance, suppose you have
>
> sage: f= function('hello',x)
>
> and you want to retrieve 'hello' from f.
>
> sage: str(f)
> '\n hello(x)'
>
> followed by stripping away the extra characters works, but is there a
> more direct approach?
>
> Alex
> >
>
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