org.netlib.lapack
Class Sorgr2

java.lang.Object
  extended by org.netlib.lapack.Sorgr2

public class Sorgr2
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 * ======= * * SORGR2 generates an m by n real matrix Q with orthonormal rows, * which is defined as the last m rows of a product of k elementary * reflectors of order n * * Q = H(1) H(2) . . . H(k) * * as returned by SGERQF. * * 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. N >= M. * * K (input) INTEGER * The number of elementary reflectors whose product defines the * matrix Q. M >= K >= 0. * * A (input/output) REAL array, dimension (LDA,N) * On entry, the (m-k+i)-th row must contain the vector which * defines the elementary reflector H(i), for i = 1,2,...,k, as * returned by SGERQF in the last k rows 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 SGERQF. * * WORK (workspace) REAL array, dimension (M) * * INFO (output) INTEGER * = 0: successful exit * < 0: if INFO = -i, the i-th argument has an illegal value * * ===================================================================== * * .. Parameters ..


Constructor Summary
Sorgr2()
           
 
Method Summary
static void sorgr2(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

Sorgr2

public Sorgr2()
Method Detail

sorgr2

public static void sorgr2(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)