Function

SparseSolve

Solves the system AX = B for X, using the supplied double-precision factorization of A.

Declaration

Parameters

Factored

Factorization of A.

B

The right-hand side, B.

X

Matrix in which to return solutions.

Discussion

If the factorization is A = QR and the system is underdetermined, the solution of minimum norm X is returned.

If the factorization is A = QR and the system is overdetermined, the least squares solution argument min AX - B is returned.

In the case of a factorization of type SparseFactorizationCholeskyAtA, the factorization is in fact of AA, so the solution returned is for the system AAX = B.

See Also

Direct Solving Functions

SparseSolve

Solves the system AX = B for X, using the supplied double-precision factorization of A, in place.

SparseSolve

Solves the system AX = B for X, using the supplied single-precision factorization of A, in place.

SparseSolve

Solves the system AX = B for X, using the supplied single-precision factorization of A.