When are we going to have a Sage Differential Geometry Days? The new
manifolds package is a great start, it would be nice to get a good group
together to build that into a robust differential geometry package.
John Hoebing
On Thursday, January 23, 2014 1:54:09 PM UTC-8, William wrote:
>
> On T
Its probably a good time to see what we can do to improve the way sage
handles ordinary differential equations. I would vote against making
improvements directly to maxima, and instead think about how we can
implement our own de solvers, perhaps using sympy, or using regular
expression matching to
On Apr 1, 11:06 am, Nils Bruin wrote:
> On Apr 1, 4:56 am, Harald Schilly wrote:
>
> > > sage: D[0](f)(x, y)/x + D[0, 1](f)(x, y)
>
> > For me, this just looks quite awkward.
>
> OK, some reasons *for* the notation then.
>
> 1) It's how sage prints the expression. It's very desirable to ensure
After a day spent trying to implement a workaround for a special case
of this issue:
http://trac.sagemath.org/sage_trac/ticket/6480
I thought it would be a good time to review the status of some of the
earlier issues with how we represent ordinary (partial) derivatives.
Most relevant is this old
And finally, 'make ptestlong' gives:
make ptestlong
...
--
All tests passed!
Total time for all tests: 1307.0 seconds
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On Jan 5, 3:03 pm, John H Palmieri wrote:
> On Thursday, January 5, 2012 2:21:37 PM UTC-8, john.hoebing wrote:
>
> > On Jan 5, 10:22 am, John Cremona wrote:
>
> > > Will this procedure work? Surely ./sage -i will not work with a
> > > half-built system? W
On Jan 5, 10:22 am, John Cremona wrote:
>
> Will this procedure work? Surely ./sage -i will not work with a
> half-built system? Well, I am trying...
No that won't work, as some others have already found. In
the early days of testing new r spkgs we had to go back
and rebuild from scratch, doing
Both the latest 4.8.alpha and this 5.0.prealpha build
and pass 'make ptestlong' on an up to date Ubuntu
11.10 amd64 system, provided, of course, that I first
'sudo apt-get remove libreadline-dev && sudo apt-get autoremove'
to enable 'r' to build without giving the longstanding
libreadline error.
Thanks, I missed the Xcode 4 part. I'll check it out.
On Nov 13, 1:34 pm, William Stein wrote:
> On Sun, Nov 13, 2011 at 1:27 PM, john.hoebing wrote:
> > I've reviewed those two tickets and I see some
> > discussion about the combo of Lion/Xcode4 but
> > I don&
I've reviewed those two tickets and I see some
discussion about the combo of Lion/Xcode4 but
I don't see a pointer to either a tar ball or patches
to get an alpha 4.8 sage that will (start to) build
on OS 10.7.x.
My build system is a new mac mini with
Lion/Xcode4 installed by default, and I'm not
The solution is to replace ./spkg/standard/readline-6.1* with
readline-6.2.p2.spkg and then go to the sage home directory and run
'make distclean' and then run 'make'. The 'libreadline*' files that
are already built (and used by other packages) have to be replaced
with the new 6.2 spkg, so you h
R' build; its kinda fixable by doing
'rm ./local/lib/*readline*' and remaking, but then it uses
the system readline. Not optimal but its an issue
thats being tracked.
And, all of this on an amd64 phenom IIx6, release Oneiric 11.10.
John
On Oct 14, 10:21 pm, akm wrote
Yes, I probably should have said that the spirit of sage is in sync
with
the spirit of this manifesto. One of the founding principles of sage
is
that one should be able to check the code to verify claims by authors,
and the manifesto addresses that same issue. Were the manifesto
to be generally e
It looks like Sage was ahead of the curve; it fits right
into this new science code manifesto:
http://sciencecodemanifesto.org/
John
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F
What would be a good way for a new mac mini owner to
help fix the Xcode 4 build problems for Sage? Those of
us who just bought our first macs after the Lion release have
Xcode 4 by default. I don't see any reason to back off
to Xcode 3, as the Sage (4.7.2.alpha2) config urges.
There's no specifi
On Sep 2, 12:52 am, Dan Drake wrote:
> I can confirm that by using the LDFLAGS workaround and fiddling with the
> Symmetrica makefile, both spkgs compile, and the resulting Sage build
> passes all tests on my Oneiric VM.
>
> --- Dan Drake
> - http://mathsci.kaist.ac.kr/~drake
I too can con
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