org.netlib.lapack
Class Sorg2r

java.lang.Object
  org.netlib.lapack.Sorg2r

public class Sorg2r
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
 *  =======
 *
 *  SORG2R generates an m by n real matrix Q with orthonormal columns,
 *  which is defined as the first n columns of a product of k elementary

 *  reflectors of order m
 *
 *        Q  =  H(1) H(2) . . . H(k)
 *
 *  as returned by SGEQRF.
 *
 *  Arguments
 *  =========
 *
 *  M       (input) INTEGER
 *          The number of rows of the matrix Q. M >= 0.
 *
 *  N       (input) INTEGER
 *          The number of columns of the matrix Q. M >= N >= 0.
 *
 *  K       (input) INTEGER
 *          The number of elementary reflectors whose product defines the
 *          matrix Q. N >= K >= 0.
 *
 *  A       (input/output) REAL array, dimension (LDA,N)
 *          On entry, the i-th column must contain the vector which
 *          defines the elementary reflector H(i), for i = 1,2,...,k, as

 *          returned by SGEQRF in the first k columns of its array
 *          argument A.
 *          On exit, the m-by-n matrix Q.
 *
 *  LDA     (input) INTEGER
 *          The first dimension of the array A. LDA >= max(1,M).
 *
 *  TAU     (input) REAL array, dimension (K)
 *          TAU(i) must contain the scalar factor of the elementary
 *          reflector H(i), as returned by SGEQRF.
 *
 *  WORK    (workspace) REAL array, dimension (N)
 *
 *  INFO    (output) INTEGER
 *          = 0: successful exit
 *          < 0: if INFO = -i, the i-th argument has an illegal value
 *
 *  =====================================================================
 *
 *     .. Parameters ..

Constructor Summary

Sorg2r()

Method Summary

static void

sorg2r(int m, int n, int k, float[] a, int _a_offset, int lda, float[] tau, int _tau_offset, float[] work, int _work_offset, intW info)

Methods inherited from class java.lang.Object

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

Constructor Detail

Sorg2r

public Sorg2r()

Method Detail

sorg2r

public static void sorg2r(int m,
                          int n,
                          int k,
                          float[] a,
                          int _a_offset,
                          int lda,
                          float[] tau,
                          int _tau_offset,
                          float[] work,
                          int _work_offset,
                          intW info)