lapmt(3)

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.

Definition at line 103 of file clapmt.f.

  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.

Definition at line 103 of file dlapmt.f.

  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.

Definition at line 103 of file slapmt.f.

  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

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