smile.math.matrix

Interface LinearSolver

All Known Implementing Classes:

BandMatrix

public interface LinearSolver

The interface of the solver of linear system.

Method Summary

Modifier and Type	Method and Description
double[]	solve(double[] b, double[] x) Solve A*x = b.

Method Detail

solve

double[] solve(double[] b,
               double[] x)

Solve A*x = b.

Parameters:

b - a vector with as many rows as A.

x - is output vector so that A*x = b

Returns:

the solution vector x

Throws:

java.lang.RuntimeException - if matrix is singular.