org.netlib.lapack
Class Dormr3

java.lang.Object
  org.netlib.lapack.Dormr3

public class Dormr3
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
 *  =======
 *
 *  DORMR3 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 DTZRZF. 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.
 *
 *  L       (input) INTEGER
 *          The number of columns of the matrix A containing
 *          the meaningful part of the Householder reflectors.
 *          If SIDE = 'L', M >= L >= 0, if SIDE = 'R', N >= L >= 0.
 *
 *  A       (input) DOUBLE PRECISION array, dimension
 *                               (LDA,M) if SIDE = 'L',
 *                               (LDA,N) if SIDE = 'R'
 *          The i-th row must contain the vector which defines the
 *          elementary reflector H(i), for i = 1,2,...,k, as returned by

 *          DTZRZF in the last k rows 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. LDA >= max(1,K).
 *
 *  TAU     (input) DOUBLE PRECISION array, dimension (K)
 *          TAU(i) must contain the scalar factor of the elementary
 *          reflector H(i), as returned by DTZRZF.
 *
 *  C       (input/output) DOUBLE PRECISION 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) DOUBLE PRECISION 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
 *
 *  Further Details
 *  ===============
 *
 *  Based on contributions by
 *    A. Petitet, Computer Science Dept., Univ. of Tenn., Knoxville, USA

 *
 *  =====================================================================
 *
 *     .. Local Scalars ..

Constructor Summary

Dormr3()

Method Summary

static void

dormr3(java.lang.String side, java.lang.String trans, int m, int n, int k, int l, double[] a, int _a_offset, int lda, double[] tau, int _tau_offset, double[] c, int _c_offset, int Ldc, double[] 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

Dormr3

public Dormr3()

Method Detail

dormr3

public static void dormr3(java.lang.String side,
                          java.lang.String trans,
                          int m,
                          int n,
                          int k,
                          int l,
                          double[] a,
                          int _a_offset,
                          int lda,
                          double[] tau,
                          int _tau_offset,
                          double[] c,
                          int _c_offset,
                          int Ldc,
                          double[] work,
                          int _work_offset,
                          intW info)