zlapmt.f - Man Page

SRC/zlapmt.f

Synopsis

Functions/Subroutines

subroutine zlapmt (forwrd, m, n, x, ldx, k)
ZLAPMT performs a forward or backward permutation of the columns of a matrix.

Function/Subroutine Documentation

subroutine zlapmt (logical forwrd, integer m, integer n, complex*16, dimension( ldx, * ) x, integer ldx, integer, dimension( * ) k)

ZLAPMT performs a forward or backward permutation of the columns of a matrix.  

Purpose:

 ZLAPMT rearranges the columns of the M by N matrix X as specified
 by the permutation K(1),K(2),...,K(N) of the integers 1,...,N.
 If FORWRD = .TRUE.,  forward permutation:

      X(*,K(J)) is moved X(*,J) for J = 1,2,...,N.

 If FORWRD = .FALSE., backward permutation:

      X(*,J) is moved to X(*,K(J)) for J = 1,2,...,N.
Parameters

FORWRD

          FORWRD is LOGICAL
          = .TRUE., forward permutation
          = .FALSE., backward permutation

M

          M is INTEGER
          The number of rows of the matrix X. M >= 0.

N

          N is INTEGER
          The number of columns of the matrix X. N >= 0.

X

          X is COMPLEX*16 array, dimension (LDX,N)
          On entry, the M by N matrix X.
          On exit, X contains the permuted matrix X.

LDX

          LDX is INTEGER
          The leading dimension of the array X, LDX >= MAX(1,M).

K

          K is INTEGER array, dimension (N)
          On entry, K contains the permutation vector. K is used as
          internal workspace, but reset to its original value on
          output.
Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 103 of file zlapmt.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

The man page zlapmt(3) is an alias of zlapmt.f(3).

Tue Nov 28 2023 12:08:42 Version 3.12.0 LAPACK