Man page - lapmt(3)

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Manual

lapmt

NAME
SYNOPSIS
Functions
Detailed Description
Function Documentation
subroutine clapmt (logical forwrd, integer m, integer n, complex,dimension( ldx, * ) x, integer ldx, integer, dimension( * ) k)
subroutine dlapmt (logical forwrd, integer m, integer n, double precision,dimension( ldx, * ) x, integer ldx, integer, dimension( * ) k)
subroutine slapmt (logical forwrd, integer m, integer n, real, dimension(ldx, * ) x, integer ldx, integer, dimension( * ) k)
subroutine zlapmt (logical forwrd, integer m, integer n, complex*16,dimension( ldx, * ) x, integer ldx, integer, dimension( * ) k)
Author

NAME

lapmt - lapmt: permute cols

SYNOPSIS

Functions

subroutine clapmt (forwrd, m, n, x, ldx, k)
CLAPMT performs a forward or backward permutation of the columns of a matrix.
subroutine dlapmt (forwrd, m, n, x, ldx, k)
DLAPMT performs a forward or backward permutation of the columns of a matrix.
subroutine slapmt (forwrd, m, n, x, ldx, k)
SLAPMT performs a forward or backward permutation of the columns of a matrix.
subroutine zlapmt (forwrd, m, n, x, ldx, k)
ZLAPMT performs a forward or backward permutation of the columns of a matrix.

Detailed Description

Function 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.

subroutine dlapmt (logical forwrd, integer m, integer n, double precision,dimension( ldx, * ) x, integer ldx, integer, dimension( * ) k)

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

Purpose:

DLAPMT 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 DOUBLE PRECISION 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.

subroutine slapmt (logical forwrd, integer m, integer n, real, dimension(ldx, * ) x, integer ldx, integer, dimension( * ) k)

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

Purpose:

SLAPMT 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 REAL 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.

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.

Author

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