Le 12/10/2014 06:12, rjf a écrit :
On Friday, October 10, 2014 6:26:24 PM UTC-7, Alasdair wrote:
I've written an article about using Sage to develop explicit
Runge-Kutta formulas for the numerical solution of ODEs.
Since the use of a computer algebra system to develop explicit R-K
Hello !
True; also for example there could be doublehasse, i.e. structure with
both upper and lower covers saved as a list for an element.
Isn't that already the case ? A hasse digram should be a (sparse)
digraph, and a (sparse) digraph should be stored twice internally,
once for
On Sun, 12 Oct 2014, Nathann Cohen wrote:
True; also for example there could be doublehasse, i.e. structure with
both upper and lower covers saved as a list for an element.
Isn't that already the case ? A hasse digram should be a (sparse)
digraph, and a (sparse) digraph should be stored
Yo !
I don't know. Where should the code for that be?
sage: d = DiGraph()
sage: d._backend
class 'sage.graphs.base.sparse_graph.SparseGraphBackend'
sage: b=d._backend
sage: b.iterator_in_nbrs??
Your implementation of static sparce graph is so fast that I don't know if
there is any
Hello,
I got that on two different machines with 6.4.beta5:
Error building Sage.
The following package(s) may have failed to build:
package: python-2.7.8
Does anybody else meet the same problem ?
I have not yet used the heavy option make distclean, because I hate to
recompile ATLAS
On 2014-10-12 20:47, Frédéric Chapoton wrote:
Hello,
I got that on two different machines with 6.4.beta5:
Error building Sage.
The following package(s) may have failed to build:
package: python-2.7.8
Log file please...
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Well, the log file is rather huge (10.6 M).
Here is just the failing part:
make[3]: Leaving directory
`/homes/doua/chapoton/sage/local/var/tmp/sage/build/\
python-2.7.8/src'
Installing valgrind suppression file...
On 2014-10-12 21:25, Frédéric Chapoton wrote:
Well, the log file is rather huge (10.6 M).
Here is just the failing part:
make[3]: Leaving directory
`/homes/doua/chapoton/sage/local/var/tmp/sage/build/\
python-2.7.8/src'
Installing valgrind suppression file...
cp: cannot create regular file
Workaround:
mkdir -p local/share/sage/ext/valgrind
make
On Sunday, October 12, 2014 8:25:46 PM UTC+1, Frédéric Chapoton wrote:
Well, the log file is rather huge (10.6 M).
Here is just the failing part:
make[3]: Leaving directory
`/homes/doua/chapoton/sage/local/var/tmp/sage/build/\
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networkx.
I am looking for a way to better represent models of systems. I currently
use Visio. It is failing my needs for multiple reasons. Some of the
specific failures a programmable tool may alleviate may be:
Hi Dinakar,
It makes more sense to post it on sage-devel as it concerns Sage
development and not a question you have about Sage. So I did the
forward.
Vincent
-- Forwarded message --
From: Dinakar Muthiah dmuth...@gmail.com
Date: Sun, 12 Oct 2014 11:51:56 -0700 (PDT)
Subject:
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