edu.emory.mathcs.csparsej.tdouble

Class Dcs_utsolve

java.lang.Object

edu.emory.mathcs.csparsej.tdouble.Dcs_utsolve

public class Dcs_utsolve
extends java.lang.Object

Solve a lower triangular system U'x=b.

Constructor Summary

Constructors

Constructor and Description
Dcs_utsolve()

Method Summary

Modifier and Type	Method and Description
static boolean	cs_utsolve(Dcs_common.Dcs U, double[] x) Solves a lower triangular system U'x=b, where x and b are dense vectors.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Dcs_utsolve

public Dcs_utsolve()

Method Detail

cs_utsolve

public static boolean cs_utsolve(Dcs_common.Dcs U,
                                 double[] x)

Solves a lower triangular system U'x=b, where x and b are dense vectors. The diagonal of U must be the last entry of each column.

Parameters:

U - upper triangular matrix in column-compressed form

x - size n, right hand side on input, solution on output

Returns:

true if successful, false on error