1. Manuals
  2. Tumbleweed
  3. lapack-man
  4. CLAPMT(3)

Scroll to navigation

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/clapmt.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/clapmt.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/clapmt.f

SYNOPSIS

Functions/Subroutines


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

Function/Subroutine Documentation

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

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

Purpose:

!>
!> CLAPMT 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 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 clapmt.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Version 3.12.0 LAPACK