Computer algebra

See this issue sympy/sympy#11044 . That issue was fixed in PR sympy/sympy#11566. Though no test case was added for the lambdify.

What needs to be done?

Add test case that this works just fine:

>>> from sympy import MatrixSymbol, lambdify
>>> x = MatrixSymbol('x', 3, 1)
>>> f = lambdify(x, x.T*x)

Test case needs to

The basics of DiscreteSystem exists now, but the little details around it need to be finished.

Right now, doc/ref/makedocreldata.g hardcodes a list of files that we scan for GAPDoc comments.

I think we should simply list all *.gd and *.gi files here, automatically (as we do for AutoDoc).

Debugging Kotlin∇ code within IntelliJ IDEA can be somewhat cumbersome due to the functional API structure (lots of deeply-nested stack traces and context switching). To facilitate more user-friendly debugging, we should add support for visual debugging by exposing Kaliningraph’s built-in graph visualization capabilities. For example, the use

Make docker image available with JIB:

• https://github.com/GoogleContainerTools/jib
• https://github.com/GoogleContainerTools/jib/tree/master/jib-maven-plugin

The docker image should be updated automatically on each master commit. Therefore we need a GitHub Action "Java with Maven".
These 3 applications should be available:

• [MMA-browser-usage](https://github.com/axkr/symja_android_libr

These would be useful for insisting that a coefficient is worth including.

syms a;

unique([a,a]) works fine, but

unique([a])

leads to the following error:
error: Python exception: UnboundLocalError: local variable ‘s’ referenced before assignment
occurred at line 1 of the Python code block:
return sp.Matrix([list(uniq(*ins))]),
error: called from
pycall_sympy_ at line 178 column 7
unique at line 55 column 5

It could be more informative on pypi.org:

The right column must be expanded to roughly match the left one.