Block cg

[pierrenodet]

solvePFMap for PMatImplicit.

[codecov]

Codecov Report

❌ Patch coverage is 96.96970% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 96.22%. Comparing base (c04b984) to head (68c04c6).

Files with missing lines	Patch %	Lines
nngeometry/solve.py	96.42%	2 Missing ⚠️
nngeometry/object/fspace.py	96.87%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #164      +/-   ##
==========================================
+ Coverage   95.76%   96.22%   +0.46%     
==========================================
  Files          23       23              
  Lines        3045     3127      +82     
==========================================
+ Hits         2916     3009      +93     
+ Misses        129      118      -11     

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[tfjgeorge]

I am stalling this PR for now, it requires tools that are missing at the moment, namely: an API to deal with non-symmetric FMats, and adjoint PFMaps and FMats with specific unit tests.