-
```
Hi,
I was wondering whether it is planned to implement matrix support for symbols. I often use symbolic calculation for matrix equations where I would like to do things like:
import sympy
a = sy…
-
```
Currently when we issue:
$ cd doc
$ make html
we get a lot of errors/warnings related to improper syntax in documentation and docstrings:
/home/mateusz/repo/git/sympy/doc/src/aboutus.txt:: (WAR…
-
bc.. >>>e,f,h=symbols('efh',commutative=False)
> > > (e_f).subs(e_f,f_e+h)
> > > h + f_e
> > > (e_f_e_f).subs(e_f,f_e+h)
> > > e_f_e_f
I tried to check the help(Symbol) and I couldn't find anything …
-
```
Issue 2022 identified a problem with handling of non-commutative terms in a Mul substitution. There are a couple of other problems it has:
1) it is protecting against removal of ele from comms_fi…
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The section is found in lines 306-519 of the current master of `julia/doc/manual/parallel-computing.rst`
I am assuming this was either an accident (not too likely) or the information in the current v…
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Bio-Phylo-0.55 fails its tests when SVG.pm is installed with perl-5.18.0 from perlbrew on Mageia Linux Cauldron x86-64. Here is the shell session. Please look into fixing it.
``` text
shlomif@telaviv…
-
I noticed that for one of my test objects, in Crossref.pm (line 178), the `$lnk` comes back as follows:
```
$lnk == Inequality
```
Sure enough, that string is in the nnexus database:
``` sql
select…
-
There are a few things that annoy me in the current metapod structure:
1. model and storage mixup: we could separate the kinematic model (tree of
joints), the state-independant parameters (masses a…
-
Here is a rough patch which enables the following:
```
sage: T(r,theta)=[r*cos(theta),r*sin(theta)]
sage: T
((r, theta) |--> r*cos(theta), (r, theta) |--> r*sin(theta))
sage: T.diff() # Jacobian ma…
-
The attached patch adds a class SBox to the module `sage.crypto.mq` which offers basic functionality to work with cryptographic substitution boxes like:
* substitution (obviously)
* difference distr…
malb updated
16 years ago