Hi Jason,
It think that find_root does use fast_float, but it compiles the
fast_float function every time it is called. This makes it very slow if
I want to find the roots of f for all values of b between say -3 and -1.
Therefore, I would like to be able to compile a fast_float function of
On Apr 23, 2009, at 12:09 AM, Stan Schymanski wrote:
Hi Jason,
It think that find_root does use fast_float, but it compiles the
fast_float function every time it is called. This makes it very
slow if
I want to find the roots of f for all values of b between say -3
and -1.
Therefore,
I still don't understand why the solution you propose in the wiki is
necessary Unless sage is passing (to the ppf function) something
other than standard python's ints and floats. Is this the case?
I just tested the same code snippet in a %python cell (in a notebook)
and it works as expected
I think it will be hard to convice the scipy folks that this is a bug
since it runs perfectly in Python, and scipy is not supposed to handle
foreign types anyway...
On 22 abr, 19:45, Ondrej Certik ond...@certik.cz wrote:
On Wed, Apr 22, 2009 at 7:55 AM, William Stein wst...@gmail.com wrote:
On Thu, Apr 23, 2009 at 3:34 AM, Flavio Coelho fccoe...@gmail.com wrote:
I still don't understand why the solution you propose in the wiki is
necessary Unless sage is passing (to the ppf function) something
other than standard python's ints and floats. Is this the case?
Yes.
I just
I have used snapshots when I forgot to save a notebook under a new name
before making big changes and then wanted to revert to the original. It
wasn't very convenient, as the plots are not saved, so I could not
easily recognise the right version. However, it saved my day!
I like the idea of
I think I may have found a good argument to ask for better type
checking in scipy:
In [4]: stats.randint(1.,15.).ppf([.1,.2,.3,.4,.5])
Out[4]: array([ 2., 3., 5., 6., 7.])
when you call stats.randint with floats as parameters you get floats
as results, which is clearly wrong and should be
Hi,
I was wondering why Sage expands products of sums in an unexpected
order:
var('a0,a1,b0,b1,b2,c0,c1,c2,c3,d0,d1,d2,d3,d4')
expand((a0+a1)*(b0+b1))
a1*b1 + a0*b1 + a1*b0 + a0*b0
expand((a0+a1)*(b0+b1+b2)*(c0+c1+c2+c3)*(d0+d1+d2+d3+d4))
a1*b2*c3*d4 + a0*b2*c3*d4 + a1*b1*c3*d4 +
Hi,
what is the curently recomended way to debug code from within a
notebook?
I found %pdb (as suggested in documentation) does not work in 3.4.
Also the standard python way: import pdb;pdb.run(call) also does not
work.
thanks
Flávio
--~--~-~--~~~---~--~~
To
On Apr 23, 2009, at 3:37 AM, Flavio Coelho wrote:
I think it will be hard to convice the scipy folks that this is a bug
since it runs perfectly in Python, and scipy is not supposed to handle
foreign types anyway...
This can be reproduced in Pure Python--just make a class that has an
On Thu, Apr 23, 2009 at 6:44 AM, philabuster pollock.p...@gmail.com wrote:
Hi,
I was wondering why Sage expands products of sums in an unexpected
order:
var('a0,a1,b0,b1,b2,c0,c1,c2,c3,d0,d1,d2,d3,d4')
The ordering of these terms is determined by maxima -- Sage doesn't
control that at
This bug *was* fixed, and the patch is on trac.
http://trac.sagemath.org/sage_trac/ticket/1871
On Apr 18, 1:08 pm, Kevin Horton khorto...@rogers.com wrote:
That works. Thank you very much. It was getting tiresome to reboot
the computer after every wiki config adjustment.
--
Kevin
On 23 Dub, 20:38, William Stein wst...@gmail.com wrote:
On Thu, Apr 23, 2009 at 6:44 AM, philabuster pollock.p...@gmail.com wrote:
Hi,
I was wondering why Sage expands products of sums in an unexpected
order:
var('a0,a1,b0,b1,b2,c0,c1,c2,c3,d0,d1,d2,d3,d4')
The ordering of these
On Thu, Apr 23, 2009 at 12:55 PM, Kevin Horton khorto...@rogers.com wrote:
But, the trac_1871-b patch does not seem applicable to the version of
moin that ships with sage. Is there a patch available for moin-1.5.7p2?
No.
We really should upgrade moinmoin included in Sage. The only reason
Hi,
I've written a patch against 3.4.1:
http://trac.sagemath.org/sage_trac/ticket/5880
which simply greatly reduces the number of situations that result in
snapshots. Basically, now you get them when you click save. There
is no autosave.
Please try/test.
-- William
On Thu, Apr 23, 2009
On Thu, Apr 23, 2009 at 4:34 PM, William Stein wst...@gmail.com wrote:
Hi,
I've written a patch against 3.4.1:
http://trac.sagemath.org/sage_trac/ticket/5880
which simply greatly reduces the number of situations that result in
snapshots. Basically, now you get them when you click save.
On Thu, Apr 23, 2009 at 2:13 PM, Timothy Clemans
timothy.clem...@gmail.com wrote:
On Thu, Apr 23, 2009 at 4:34 PM, William Stein wst...@gmail.com wrote:
Hi,
I've written a patch against 3.4.1:
http://trac.sagemath.org/sage_trac/ticket/5880
which simply greatly reduces the number of
On Thu, Apr 23, 2009 at 5:14 PM, William Stein wst...@gmail.com wrote:
On Thu, Apr 23, 2009 at 2:13 PM, Timothy Clemans
timothy.clem...@gmail.com wrote:
On Thu, Apr 23, 2009 at 4:34 PM, William Stein wst...@gmail.com wrote:
Hi,
I've written a patch against 3.4.1:
Hi All,
When I try to work on some of the tutorials (Calculus, Matrix algebra)
sws files, then the notebook becomes extremely slow.
Yesterday the notebook was crashing IE so I was asked to upgrade JRE.
After the java upgrade, the notebook is very slow especially on big
files like the calculus
On Thu, Apr 23, 2009 at 2:40 PM, SG srikanth.gane...@gmail.com wrote:
Hi All,
When I try to work on some of the tutorials (Calculus, Matrix algebra)
sws files, then the notebook becomes extremely slow.
Yesterday the notebook was crashing IE so I was asked to upgrade JRE.
After the java
Greetings from Franconia.
I tried to use the compiler to build Sage in my Zenwalk system
(Zenwalk is based on Slackware Linux), but this time it did't work
(might be due to the antique hardware I am using this time).
I would like to put a request for a Zenwalk-package of Sage to the
Zenwalk
On Apr 23, 4:28 pm, littlemathteacher relational...@gmail.com wrote:
Greetings from Franconia.
Hi,
I tried to use the compiler to build Sage in my Zenwalk system
(Zenwalk is based on Slackware Linux), but this time it did't work
(might be due to the antique hardware I am using this time).
Dear Michael,
thanks.
When I returned home this evening the process and the whole system
seemed to be frozen as if by memory overload. I slowly tried to close
some applications and among them accidentally was the bash in which I
had opened the file manager (by su root) to cd into the sage
On Apr 23, 5:41 pm, littlemathteacher relational...@gmail.com wrote:
Dear Michael,
Hi Markus,
thanks.
When I returned home this evening the process and the whole system
seemed to be frozen as if by memory overload. I slowly tried to close
some applications and among them accidentally
Hi Markus,
On Fri, Apr 24, 2009 at 12:41 AM, littlemathteacher
relational...@gmail.com wrote:
Dear Michael,
thanks.
When I returned home this evening the process and the whole system
seemed to be frozen as if by memory overload. I slowly tried to close
some applications and among them
Hmm, implementing the chain rule is trickier than i thought. My
straightforward plan of attack was to write a function that
differentiates a symbolic expression as usual but when it comes to a
composition f o g, it uses the chain rule and returns the appropriate
entry of the matrix (Df o g)Dg.
On Thu, Apr 23, 2009 at 7:18 PM, Alex Raichev tortoise.s...@gmail.com wrote:
Hmm, implementing the chain rule is trickier than i thought. My
straightforward plan of attack was to write a function that
differentiates a symbolic expression as usual but when it comes to a
composition f o g, it
On Apr 22, 5:36 pm, William Stein wst...@gmail.com wrote:
Does anybody here ever use snapshots?
I have never used a snapshot, that I am aware of. I've lost a cell or
two due to crashes, but I think this was always due to my flaky USB
hard drive setup and not Sage's fault. And it was always
Thanks for the news, William. I will hold off on this chain rule
business till the new symbolics arrive.
Alex
On Apr 24, 3:43 pm, William Stein wst...@gmail.com wrote:
On Thu, Apr 23, 2009 at 7:18 PM, Alex Raichev tortoise.s...@gmail.com wrote:
Hmm, implementing the chain rule is trickier
Hi all:
I am using Sage Version 3.4, Release Date: 2009-03-11. I asked Sage
to simplify the following expression:
-q^(5/2)*(q^2*x2^4 + q*x2^2) + q^(9/2)*x2^4 + q^(3/2)*(q^2 + 1)
*x2^2 + sqrt(q)
by calling the simplify command:
simplify(-q^(5/2)*(q^2*x2^4 + q*x2^2) + q^(9/2)*x2^4 +
On Apr 23, 2009, at 9:32 PM, drupel wrote:
Hi all:
I am using Sage Version 3.4, Release Date: 2009-03-11. I asked Sage
to simplify the following expression:
-q^(5/2)*(q^2*x2^4 + q*x2^2) + q^(9/2)*x2^4 + q^(3/2)*(q^2 + 1)
*x2^2 + sqrt(q)
by calling the simplify command:
Hi Dylan,
On Fri, Apr 24, 2009 at 4:32 AM, drupel dylanru...@gmail.com wrote:
Hi all:
I am using Sage Version 3.4, Release Date: 2009-03-11. I asked Sage
to simplify the following expression:
-q^(5/2)*(q^2*x2^4 + q*x2^2) + q^(9/2)*x2^4 + q^(3/2)*(q^2 + 1)
*x2^2 + sqrt(q)
by calling
On Fri, Apr 24, 2009 at 4:37 AM, Minh Nguyen nguyenmi...@gmail.com wrote:
Hi Dylan,
On Fri, Apr 24, 2009 at 4:32 AM, drupel dylanru...@gmail.com wrote:
Hi all:
I am using Sage Version 3.4, Release Date: 2009-03-11. I asked Sage
to simplify the following expression:
-q^(5/2)*(q^2*x2^4
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