Problem Description

As in the title.

Proposed Solution

There are some choices:

• scipy is out of the question ENH: linalg: integrate mplapack and mpmath/gmpy2 for eigenvalues/SVD of multi-precision matrices scipy/scipy#22731
• make binding to mplapack (mlapack on conda-forge https://github.com/conda-forge/mlapack-feedstock , but currently is at old version) ourselves
• use mpmath https://mpmath.org/doc/current/matrices.html#the-eigenvalue-problem
• use flintlib (eigenvalue only, doesn't have SVD) https://flintlib.org/doc/acb_mat.html#eigenvalues-and-eigenvectors
• use sympy
• use GP/PARI https://pari.math.u-bordeaux.fr/dochtml/html/Vectors__matrices__linear_algebra_and_sets.html#se:mateigen (no built-in SVD, maybe inspire from https://www.jjj.de/pari/matsvd.gpi )

Is there an existing issue for this?

• I have searched the existing issues for a bug report that matches the one I want to file, without success.