Function

# SparseSolve

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

## 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.

### 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.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.