> Anything skanky milling around in those "subroutine comments"?
Thank you all for your attention, but it turns out that Cholesky
decomposition can be naively computed via trivial recursions. 6
lines. Now it may not be numerically stable... but it's easy :)
Nick
--~--~-~--~~--
On Feb 19, 2009, at 21:50 , Nick Alexander wrote:
>
> Hi,
>
> The following is the BSD-like license of some MPFR cholesky
> decomposition code I might like to use. Is this sage-able?
>
> Nick
>
> (*
> Copyright (c) 1992-200
Hello folks,
the final 3.3 sources are out and now available at
http://www.sagemath.org/src/
as well as some of the mirrors already (at least Seattle II, Boston,
Germany and France since I personally pushed or pulled the update).
Over 3.3.rc3 there were as expected very few merges:
Merged i
On Feb 22, 2009, at 1:25 AM, Ondrej Certik wrote:
>>
> It's because sympy, sympycore and pynac were all written by different
> people and as of now they are not compatible. I don't like the
> situation either, and if I manage to find funding for the summer, I'd
> like to speedup sympy using Cytho
I have been walking through some of the matrix code before adding some
enhancements.
A right_kernel() will take the transpose of a matrix and call
left_kernel(). left_kernel() (or kernel()) generally takes a
transpose before calling some other code to row-reduce the matrix, and
so on. It appear
On Sat, Feb 21, 2009 at 7:57 AM, Maurizio wrote:
>
> Hi Burcin,
> thank you very much for this!
>
> I admit that I've never heard of Pynac. I'm really glad to have
> subscribed this group, otherwise I couldn't have discovered it!
> This brings me to a new question: how are user supposed to go thr
On Feb 20, 2009, at 23:25 , mabshoff wrote:
>
> Hello folks,
>
> Sage 3.3.rc3 is out and available in the usual place at
>
> http://sage.math.washington.edu/home/mabshoff/release-cycles-3.3/
Built w/o problems as an upgrade to rc0, on Mac OS X, 10.5.6 (Dual
Quad Xeon). All tests passed!
J
On Feb 21, 2009, at 00:32 , mabshoff wrote:
>
>
>
> On Feb 21, 12:21 am, Alex Ghitza wrote:
>
> Hi Alex,
>
>> I've recently (yesterday) turned my work MacBook into a dual-boot
>> MacOSX and
>> Archlinux machine. I built 3.3.rc3 from scratch under Linux, without
>> problems and with all tests
On Feb 21, 4:09 pm, William Stein wrote:
> On Sat, Feb 21, 2009 at 2:56 PM, mabshoff wrote:
> > #5333 (pynac.spkg: Delete old pynac libray during spkg-install
>
> I just want to point out that I didn't actually hit that problem and
> that wasn't the fix for the problem I saw, though it is a
On Sat, Feb 21, 2009 at 2:56 PM, mabshoff wrote:
>
>
>
> On Feb 21, 8:57 am, John Cremona wrote:
>> On Feb 21, 3:45 pm, John Cremona wrote:
>
> Hi John,
>
>
>
>> The upgrade failed in exactly the same way as above. To recap: I had
>> a working successful build of sage-3.3.rc0 and was in the
Hello folks,
Sage 3.3 is out and upgrading via the main Sage server is live. It
seems that we are having some trouble with some stale pynac libs on
upgrade from some releases, so please let us know if you are hit by
that. We are tracking the problem at #5333 and there should be an
updated spkg in
On Feb 21, 8:57 am, John Cremona wrote:
> On Feb 21, 3:45 pm, John Cremona wrote:
Hi John,
> The upgrade failed in exactly the same way as above. To recap: I had
> a working successful build of sage-3.3.rc0 and was in the main branch
> (so starting sage did not give me a message about bi
This link is not working:http://sagemath.org/paper-letter/
It is under doc page/pdf versions link...
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Yesterday, I wanted to make an interact widget that showed an animation more
complicated than the animate command allows. So, on a plane trip, I hacked up
the following. It's a bit rough, and not a proper patch, etc. However, those
who care can paste it into a notebook and check it out.
Th
Maurizio wrote:
>>> Another example is with matplotlib. As I can read somewhere on the
>>> web, there are different opinions about using the SAGE plot
>>> capabilities rather than this external package.
>> Sage's 2d plotting just uses matplotlib, which is a standard package
>> included in SAge. M
-- Forwarded message --
From: Harald Schilly
Date: Sat, Feb 21, 2009 at 3:09 AM
Subject: sage @ Quantnet.org - Financial Engineering Forum
To: William Stein
Hi, my google-alert just told me about this. I think you maybe want to
follow that thread or answer there!
http://www.qu
On Feb 21, 10:41 am, William Stein wrote:
> On Sat, Feb 21, 2009 at 8:57 AM, John Cremona wrote
Hi,
> > I particularly like the suggestion that my problem is to upgrade
> > (which does nothing, of course).
>
> That is an error message from Ipython suggesting to upgrade the
> Ipython rc files
On Sat, Feb 21, 2009 at 8:57 AM, John Cremona wrote:
>
>
>
> On Feb 21, 3:45 pm, John Cremona wrote:
>> Thanks for the diagnosis and suggestions. Evidently I did the upgrade
>> from a clone, one I made yesterday to review one of those patches
>>
>> Suggestion: since the upgrade already giv
On Feb 21, 9:58 am, John Cremona wrote:
Hi John,
> Thanks, Michael. Obviously do not spend any (more) time on this
> before 3.3 is out.
The Sage 3.3 sources are already in the usual place with the other
3.3.alpha and rc releases. They should be on the main website within a
few hours.
> Or
Thanks, Michael. Obviously do not spend any (more) time on this
before 3.3 is out. Or maybe 3.4. or 3.4.1. or...
see http://www.warwick.ac.uk/staff/J.E.Cremona/upgrade.tgz
for the install log and env output.
I could not do either "hg heads" or "hg status" in sage-3.3.rc0/devel/
sage :
j...@u
On Feb 21, 8:57 am, John Cremona wrote:
> On Feb 21, 3:45 pm, John Cremona wrote:
Hi John,
> > I'm now doing an upgrade from my rc0 build, not from any clone, and
> > we'll see what happens!
>
> The upgrade failed in exactly the same way as above. To recap: I had
> a working successful bui
On Feb 21, 3:45 pm, John Cremona wrote:
> Thanks for the diagnosis and suggestions. Evidently I did the upgrade
> from a clone, one I made yesterday to review one of those patches
>
> Suggestion: since the upgrade already gives a prompt and will not
> continue unless you reply "yes", why
On Feb 21, 8:14 am, mark mcclure wrote:
Hi Mark,
> I can't quite figure out how to access optional programs
> using Sage.app. For example, if I start sage via the
> command line './sage-3.3.rc2/sage' and then fire up the
> notebook, I can access Octave and compute the eigenvalues
> of a rand
I can't quite figure out how to access optional programs
using Sage.app. For example, if I start sage via the
command line './sage-3.3.rc2/sage' and then fire up the
notebook, I can access Octave and compute the eigenvalues
of a random 5x5 matrix using something like the following
%octave
A =
Hi,
Looking around, it seems Sage does not yet implement harmonic numbers
(except via SymPy)? If anyone is interested, I benchmarked a few
different algorithms and blogged about it here:
http://fredrik-j.blogspot.com/2009/02/how-not-to-compute-harmonic-numbers.html
Besides (generalized) harmonic
Hi Burcin,
thank you very much for this!
I admit that I've never heard of Pynac. I'm really glad to have
subscribed this group, otherwise I couldn't have discovered it!
This brings me to a new question: how are user supposed to go through
SAGE features learning?
I supposed that the reference manu
On Feb 21, 2009, at 3:30 AM, Maurizio wrote:
> That was the way I used to do it when I discovered the solution_dict
> param.
>
> So, I started using the dictionaries to do substitution even in
> complex expressions... The result was to wait so much time!
>
> On the contrary, I found that the subs
Thanks for the diagnosis and suggestions. Evidently I did the upgrade
from a clone, one I made yesterday to review one of those patches
Suggestion: since the upgrade already gives a prompt and will not
continue unless you reply "yes", why not add to that prompt a line
saying don't go any f
On Feb 21, 2009, at 6:23 AM, mabshoff wrote:
> On Feb 21, 6:10 am, John Cremona wrote:
>
> Hi John,
>
>> Am I the only person for whom "sage -upgrade" always fails? It
>> downloads lots of stuff, builds lots of stuff, and leaves me with an
>> un-runnable sage which doesn't know whether it is th
On Feb 21, 6:36 am, Simon King wrote:
> On 21 Feb., 15:27, mabshoff wrote:
>
> > > rm -rf devel/sage
>
> > oops:
>
> > rm -rf devel/sage*
>
> > Note that this will nuke all your changes, but that should be fairly
> > obvious :)
>
> > > ./sage -f spkt/standard/sage-x.y.z.spkg
>
> And I gues
On 21 Feb., 15:27, mabshoff wrote:
> > rm -rf devel/sage
>
> oops:
>
> rm -rf devel/sage*
>
> Note that this will nuke all your changes, but that should be fairly
> obvious :)
>
> > ./sage -f spkt/standard/sage-x.y.z.spkg
And I guess in the previous line it is spkg/standard/sage-x.y.z.spkg,
On Feb 21, 6:10 am, John Cremona wrote:
Hi John,
> Am I the only person for whom "sage -upgrade" always fails? It
> downloads lots of stuff, builds lots of stuff, and leaves me with an
> un-runnable sage which doesn't know whether it is the old version or
> the new.
-upgrade is designed to
On Feb 21, 6:23 am, mabshoff wrote:
> On Feb 21, 6:10 am, John Cremona wrote:
>
> Hi John,
>
> > Am I the only person for whom "sage -upgrade" always fails? It
> > downloads lots of stuff, builds lots of stuff, and leaves me with an
> > un-runnable sage which doesn't know whether it is the ol
Am I the only person for whom "sage -upgrade" always fails? It
downloads lots of stuff, builds lots of stuff, and leaves me with an
un-runnable sage which doesn't know whether it is the old version or
the new.
In this case my working 3.3.rc2 was upgraded. Afterwards, the banner
still says 3.3.r
Dear all,
It seems that I'm having a pexpect problem on my computation server. Maybe you
already know that but it is not deterministic, ie doctest hangs in some more
or less randomly chosen file. I've followed the instructions on
http://groups.google.com/group/sage-devel/browse_thread/t
Hi Maurizio,
On Fri, 20 Feb 2009 16:21:36 -0800 (PST)
Maurizio wrote:
> unfortunately, I don't have the code with me right now (I could give
> you on monday), but I'm pretty sure it is something REALLY
> straightforward and not optimized, like this:
>
> def coll(expr,s):
> import sympy as
On Feb 21, 12:30 pm, Maurizio wrote:
> So, I started using the dictionaries to do substitution even in
> complex expressions... The result was to wait so much time!
That sounds bad, can you give an example? Or create one so that others
can investigate it?
> result = subList(expr, set)
I still
That was the way I used to do it when I discovered the solution_dict
param.
So, I started using the dictionaries to do substitution even in
complex expressions... The result was to wait so much time!
On the contrary, I found that the subs(expr, x=) was S much
faster (are the dictionaries so
mabshoff wrote:
> Hello folks,
>
> Sage 3.3.rc3 is out and available in the usual place at
>
>http://sage.math.washington.edu/home/mabshoff/release-cycles-3.3/
>
> We merged a bunch of fixes and hopefully all doctest issues will have
> been resolved. So far only two issues have cropped up t
> > Another example is with matplotlib. As I can read somewhere on the
> > web, there are different opinions about using the SAGE plot
> > capabilities rather than this external package.
>
> Sage's 2d plotting just uses matplotlib, which is a standard package
> included in SAge. Matplotlib's pyla
On Feb 21, 12:21 am, Alex Ghitza wrote:
Hi Alex,
> I've recently (yesterday) turned my work MacBook into a dual-boot MacOSX and
> Archlinux machine. I built 3.3.rc3 from scratch under Linux, without
> problems and with all tests passing. I updated to 3.3.rc3 under OSX,
> without problems ex
On Feb 21, 12:15 am, Alex Ghitza wrote:
> Hi Michael,
Hi Alex,
> One correction to attributions:
>
> Merged in Sage 3.3.rc3:
>
>
>
> > #4688: Alex Ghitza: wrap pari functions idealstar and ideallog
> > [Reviewed by John Cremona]
>
> should be
>
> #4688: Maite Aranes, Alex Ghitza: wrap pari fu
I've recently (yesterday) turned my work MacBook into a dual-boot MacOSX and
Archlinux machine. I built 3.3.rc3 from scratch under Linux, without
problems and with all tests passing. I updated to 3.3.rc3 under OSX,
without problems except one small doctest failure due to the fact that I
forgot I
Hi Michael,
One correction to attributions:
Merged in Sage 3.3.rc3:
>
> #4688: Alex Ghitza: wrap pari functions idealstar and ideallog
> [Reviewed by John Cremona]
>
should be
#4688: Maite Aranes, Alex Ghitza: wrap pari functions idealstar and ideallog
[Reviewed by John Cremona]
Best,
Alex
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