Log Message:
py-sympy: updated to 1.13.1

1.13.1

matrices

Matrix.inv() now uses exact rational coefficients internally for matrices of \ 
polynomials or rational functions if the matrix has symbolic expressions with \ 
float coefficients. This fixes an issue first seen in SymPy 1.13.0 where \ 
unnecessarily large floats were present in the expressions for the matrix \ 
inverse (https://github.com/sympy/sympy/issues/26821) and likely also prevents \ 
Matrix.inv from returning some inaccurate results for some matrices containing \ 
floats.

physics.vector

A bug in pretty printing of vectors was fixed. A regression in 1.13.0 means that \ 
an exception would be raised when printing the zero vector.

polys

Fix GF with Integer argument. A regression in 1.13.0 meant that when the ground \ 
types are flint GF(3)(Integer(2)) would raise an exception.