org.netlib.lapack
Class Sorm2r

java.lang.Object
  org.netlib.lapack.Sorm2r

public class Sorm2r
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
 *  =======
 *
 *  SORM2R overwrites the general real m by n matrix C with
 *
 *        Q * C  if SIDE = 'L' and TRANS = 'N', or
 *
 *        Q'* C  if SIDE = 'L' and TRANS = 'T', or
 *
 *        C * Q  if SIDE = 'R' and TRANS = 'N', or
 *
 *        C * Q' if SIDE = 'R' and TRANS = 'T',
 *
 *  where Q is a real orthogonal matrix defined as the product of k
 *  elementary reflectors
 *
 *        Q = H(1) H(2) . . . H(k)
 *
 *  as returned by SGEQRF. Q is of order m if SIDE = 'L' and of order n
 *  if SIDE = 'R'.
 *
 *  Arguments
 *  =========
 *
 *  SIDE    (input) CHARACTER*1
 *          = 'L': apply Q or Q' from the Left
 *          = 'R': apply Q or Q' from the Right
 *
 *  TRANS   (input) CHARACTER*1
 *          = 'N': apply Q  (No transpose)
 *          = 'T': apply Q' (Transpose)
 *
 *  M       (input) INTEGER
 *          The number of rows of the matrix C. M >= 0.
 *
 *  N       (input) INTEGER
 *          The number of columns of the matrix C. N >= 0.
 *
 *  K       (input) INTEGER
 *          The number of elementary reflectors whose product defines
 *          the matrix Q.
 *          If SIDE = 'L', M >= K >= 0;
 *          if SIDE = 'R', N >= K >= 0.
 *
 *  A       (input) REAL array, dimension (LDA,K)
 *          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.
 *          A is modified by the routine but restored on exit.
 *
 *  LDA     (input) INTEGER
 *          The leading dimension of the array A.
 *          If SIDE = 'L', LDA >= max(1,M);
 *          if SIDE = 'R', LDA >= max(1,N).
 *
 *  TAU     (input) REAL array, dimension (K)
 *          TAU(i) must contain the scalar factor of the elementary
 *          reflector H(i), as returned by SGEQRF.
 *
 *  C       (input/output) REAL array, dimension (LDC,N)
 *          On entry, the m by n matrix C.
 *          On exit, C is overwritten by Q*C or Q'*C or C*Q' or C*Q.
 *
 *  LDC     (input) INTEGER
 *          The leading dimension of the array C. LDC >= max(1,M).
 *
 *  WORK    (workspace) REAL array, dimension
 *                                   (N) if SIDE = 'L',
 *                                   (M) if SIDE = 'R'
 *
 *  INFO    (output) INTEGER
 *          = 0: successful exit
 *          < 0: if INFO = -i, the i-th argument had an illegal value
 *
 *  =====================================================================
 *
 *     .. Parameters ..

Constructor Summary

Sorm2r()

Method Summary

static void

sorm2r(java.lang.String side, java.lang.String trans, int m, int n, int k, float[] a, int _a_offset, int lda, float[] tau, int _tau_offset, float[] c, int _c_offset, int Ldc, 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

Sorm2r

public Sorm2r()

Method Detail

sorm2r

public static void sorm2r(java.lang.String side,
                          java.lang.String trans,
                          int m,
                          int n,
                          int k,
                          float[] a,
                          int _a_offset,
                          int lda,
                          float[] tau,
                          int _tau_offset,
                          float[] c,
                          int _c_offset,
                          int Ldc,
                          float[] work,
                          int _work_offset,
                          intW info)