def _solve(self, A, F, N, b):
"""
Solve linear system ``Ax = b`` using numeric factorization ``N`` and symbolic factorization ``F``.
Parameters
----------
A
Sparse matrix.
F
Symbolic factorization
N
Numeric factorization
b
RHS of the equation
Returns
-------
The solution as a ``cvxopt.matrix``.
"""
if self.sparselib == 'umfpack':
umfpack.solve(A, N, b)
return b
elif self.sparselib == 'klu':
klu.solve(A, F, N, b)
return b
elif self.sparselib in ('spsolve', 'cupy'):
raise NotImplementedError
def _solve(self, A, F, N, b):
klu.solve(A, F, N, b)