org.netlib.lapack
Class Dlarfx

java.lang.Object
  extended by org.netlib.lapack.Dlarfx

public class Dlarfx
extends java.lang.Object

Following is the description from the original
Fortran source.  For each array argument, the Java
version will include an integer offset parameter, so
the arguments may not match the description exactly.
Contact seymour@cs.utk.edu with any questions.

* .. * * Purpose * ======= * * DLARFX applies a real elementary reflector H to a real m by n * matrix C, from either the left or the right. H is represented in the * form * * H = I - tau * v * v' * * where tau is a real scalar and v is a real vector. * * If tau = 0, then H is taken to be the unit matrix * * This version uses inline code if H has order < 11. * * Arguments * ========= * * SIDE (input) CHARACTER*1 * = 'L': form H * C * = 'R': form C * H * * M (input) INTEGER * The number of rows of the matrix C. * * N (input) INTEGER * The number of columns of the matrix C. * * V (input) DOUBLE PRECISION array, dimension (M) if SIDE = 'L' * or (N) if SIDE = 'R' * The vector v in the representation of H. * * TAU (input) DOUBLE PRECISION * The value tau in the representation of H. * * C (input/output) DOUBLE PRECISION array, dimension (LDC,N) * On entry, the m by n matrix C. * On exit, C is overwritten by the matrix H * C if SIDE = 'L', * or C * H if SIDE = 'R'. * * LDC (input) INTEGER * The leading dimension of the array C. LDA >= (1,M). * * WORK (workspace) DOUBLE PRECISION array, dimension * (N) if SIDE = 'L' * or (M) if SIDE = 'R' * WORK is not referenced if H has order < 11. * * ===================================================================== * * .. Parameters ..


Constructor Summary
Dlarfx()
           
 
Method Summary
static void dlarfx(java.lang.String side, int m, int n, double[] v, int _v_offset, double tau, double[] c, int _c_offset, int Ldc, double[] work, int _work_offset)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Dlarfx

public Dlarfx()
Method Detail

dlarfx

public static void dlarfx(java.lang.String side,
                          int m,
                          int n,
                          double[] v,
                          int _v_offset,
                          double tau,
                          double[] c,
                          int _c_offset,
                          int Ldc,
                          double[] work,
                          int _work_offset)