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.

In PR #4557 we added InstallEarlyMethod and used it to merge FirstOp and First. Something similar should be done for more operations, following the pattern outlined in PR #4557

Here is a partial lists of operations where it may make sense to do so:

• in coll.gd
  • ListOp
  • SumOp
  • ProductOp
  • FilteredOp
  • NumberOp
  • ForAllOp
  • ForAnyOp
• in list.gd

The package I want to suggest the idea to: AngouriMath.Interactive

The current logo includes Jupyter logo which is incorrect (since you can use that pkg in VSC Notebooks or in console etc.).

[Here](https://drive.google.com/file/d/1Y8TwuEjL0-YO2DCE6c_qs8TrhGJES_tL/view?usp=sharing

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

Someone interested in improving the Symja help/tutorial?

• https://matheclipse.org/

Please improve the markdown documents here:

• https://github.com/axkr/symja_android_library/tree/master/symja_android_library/doc

This is a common pattern: I have a list of independent criteria that a student's answer must fulfil. For each of them, I want to add a certain amount of credit if it's satisfied, and give some negative feedback otherwise.

At the moment, it's possible with this:

if(criterion_satisfied,
  add_credit(amount, "You did it!")
, negative_feedback("You didn't do it.")
)

It would be c

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.