Prefer Matrix as concrete created AMatrix class
AMatrix setRow
improve matrix construction functions
tighten return types
tighten return types
implement LU decomposition (exc. pivoting)
Add PermutationMatrix
PermutationMatrix methods
swapRows for VectorMatrixMN
PermutationMatrix inner products
More permutation matrix methods and tests
more permutation matrix features
more permutation features
refactor
Index partity testing with swapCount
More permutation matrix features
More index testing for swaps
Fix even permutation test
More PermutationMatrix improvements
More PermutationMatrix testing