org.ejml.interfaces.linsol

Interface LinearSolverSparse<S extends Matrix,D extends Matrix>

All Superinterfaces:

LinearSolver<S,D>

All Known Implementing Classes:

LinearSolverSparseSafe, LinearSolverToSparse

public interface LinearSolverSparse<S extends Matrix,D extends Matrix>
extends LinearSolver<S,D>

Method Summary

Modifier and Type	Method and Description
boolean	isStructureLocked() Checks to see if the structure is locked.
void	setStructureLocked(boolean locked) Save results from structural analysis step.
void	solveSparse(S B, S X) Solve against sparse matrices.

Methods inherited from interface org.ejml.interfaces.linsol.LinearSolver

getDecomposition, modifiesA, modifiesB, quality, setA, solve

Method Detail

solveSparse

void solveSparse(S B,
                 S X)

Solve against sparse matrices. A*X=B. In most situations its more desirable to solve against a dense matrix because of fill in.

Parameters:

B - Input. Never modified.

X - Output. Never modified.

setStructureLocked

void setStructureLocked(boolean locked)

Save results from structural analysis step. This can reduce computations of a matrix with the exactly same non-zero pattern is decomposed in the future. If a matrix has yet to be processed then the structure of the next matrix is saved. If a matrix has already been processed then the structure of the most recently processed matrix will be saved.

isStructureLocked

boolean isStructureLocked()

Checks to see if the structure is locked.

Returns:

true if locked or false if not locked.