def _numeric(self, A, F):
"""
Return the numeric factorization of sparse matrix ``A`` using symbolic factorization ``F``.
Parameters
----------
A
Sparse matrix for the equation set coefficients.
F
The symbolic factorization of a matrix with the same non-zero shape as ``A``.
Returns
-------
The numeric factorization of ``A``.
"""
if self.sparselib == 'umfpack':
return umfpack.numeric(A, F)
elif self.sparselib == 'klu':
return klu.numeric(A, F)
elif self.sparselib in ('spsolve', 'cupy'):
raise NotImplementedError
def _numeric(self, A, F):
return klu.numeric(A, F)