.TH "lapmt" 3 "Wed Feb 7 2024 11:30:40" "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
lapmt \- lapmt: permute cols
.SH SYNOPSIS
.br
.PP
.SS "Functions"

.in +1c
.ti -1c
.RI "subroutine \fBclapmt\fP (forwrd, m, n, x, ldx, k)"
.br
.RI "\fBCLAPMT\fP performs a forward or backward permutation of the columns of a matrix\&. "
.ti -1c
.RI "subroutine \fBdlapmt\fP (forwrd, m, n, x, ldx, k)"
.br
.RI "\fBDLAPMT\fP performs a forward or backward permutation of the columns of a matrix\&. "
.ti -1c
.RI "subroutine \fBslapmt\fP (forwrd, m, n, x, ldx, k)"
.br
.RI "\fBSLAPMT\fP performs a forward or backward permutation of the columns of a matrix\&. "
.ti -1c
.RI "subroutine \fBzlapmt\fP (forwrd, m, n, x, ldx, k)"
.br
.RI "\fBZLAPMT\fP performs a forward or backward permutation of the columns of a matrix\&. "
.in -1c
.SH "Detailed Description"
.PP 

.SH "Function Documentation"
.PP 
.SS "subroutine clapmt (logical forwrd, integer m, integer n, complex, dimension( ldx, * ) x, integer ldx, integer, dimension( * ) k)"

.PP
\fBCLAPMT\fP performs a forward or backward permutation of the columns of a matrix\&.  
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
 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\&.
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIFORWRD\fP 
.PP
.nf
          FORWRD is LOGICAL
          = \&.TRUE\&., forward permutation
          = \&.FALSE\&., backward permutation
.fi
.PP
.br
\fIM\fP 
.PP
.nf
          M is INTEGER
          The number of rows of the matrix X\&. M >= 0\&.
.fi
.PP
.br
\fIN\fP 
.PP
.nf
          N is INTEGER
          The number of columns of the matrix X\&. N >= 0\&.
.fi
.PP
.br
\fIX\fP 
.PP
.nf
          X is COMPLEX array, dimension (LDX,N)
          On entry, the M by N matrix X\&.
          On exit, X contains the permuted matrix X\&.
.fi
.PP
.br
\fILDX\fP 
.PP
.nf
          LDX is INTEGER
          The leading dimension of the array X, LDX >= MAX(1,M)\&.
.fi
.PP
.br
\fIK\fP 
.PP
.nf
          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\&.
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 
.PP
Univ\&. of California Berkeley 
.PP
Univ\&. of Colorado Denver 
.PP
NAG Ltd\&. 
.RE
.PP

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

.PP
\fBDLAPMT\fP performs a forward or backward permutation of the columns of a matrix\&.  
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
 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\&.
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIFORWRD\fP 
.PP
.nf
          FORWRD is LOGICAL
          = \&.TRUE\&., forward permutation
          = \&.FALSE\&., backward permutation
.fi
.PP
.br
\fIM\fP 
.PP
.nf
          M is INTEGER
          The number of rows of the matrix X\&. M >= 0\&.
.fi
.PP
.br
\fIN\fP 
.PP
.nf
          N is INTEGER
          The number of columns of the matrix X\&. N >= 0\&.
.fi
.PP
.br
\fIX\fP 
.PP
.nf
          X is DOUBLE PRECISION array, dimension (LDX,N)
          On entry, the M by N matrix X\&.
          On exit, X contains the permuted matrix X\&.
.fi
.PP
.br
\fILDX\fP 
.PP
.nf
          LDX is INTEGER
          The leading dimension of the array X, LDX >= MAX(1,M)\&.
.fi
.PP
.br
\fIK\fP 
.PP
.nf
          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\&.
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 
.PP
Univ\&. of California Berkeley 
.PP
Univ\&. of Colorado Denver 
.PP
NAG Ltd\&. 
.RE
.PP

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

.PP
\fBSLAPMT\fP performs a forward or backward permutation of the columns of a matrix\&.  
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
 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\&.
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIFORWRD\fP 
.PP
.nf
          FORWRD is LOGICAL
          = \&.TRUE\&., forward permutation
          = \&.FALSE\&., backward permutation
.fi
.PP
.br
\fIM\fP 
.PP
.nf
          M is INTEGER
          The number of rows of the matrix X\&. M >= 0\&.
.fi
.PP
.br
\fIN\fP 
.PP
.nf
          N is INTEGER
          The number of columns of the matrix X\&. N >= 0\&.
.fi
.PP
.br
\fIX\fP 
.PP
.nf
          X is REAL array, dimension (LDX,N)
          On entry, the M by N matrix X\&.
          On exit, X contains the permuted matrix X\&.
.fi
.PP
.br
\fILDX\fP 
.PP
.nf
          LDX is INTEGER
          The leading dimension of the array X, LDX >= MAX(1,M)\&.
.fi
.PP
.br
\fIK\fP 
.PP
.nf
          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\&.
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 
.PP
Univ\&. of California Berkeley 
.PP
Univ\&. of Colorado Denver 
.PP
NAG Ltd\&. 
.RE
.PP

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

.PP
\fBZLAPMT\fP performs a forward or backward permutation of the columns of a matrix\&.  
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
 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\&.
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIFORWRD\fP 
.PP
.nf
          FORWRD is LOGICAL
          = \&.TRUE\&., forward permutation
          = \&.FALSE\&., backward permutation
.fi
.PP
.br
\fIM\fP 
.PP
.nf
          M is INTEGER
          The number of rows of the matrix X\&. M >= 0\&.
.fi
.PP
.br
\fIN\fP 
.PP
.nf
          N is INTEGER
          The number of columns of the matrix X\&. N >= 0\&.
.fi
.PP
.br
\fIX\fP 
.PP
.nf
          X is COMPLEX*16 array, dimension (LDX,N)
          On entry, the M by N matrix X\&.
          On exit, X contains the permuted matrix X\&.
.fi
.PP
.br
\fILDX\fP 
.PP
.nf
          LDX is INTEGER
          The leading dimension of the array X, LDX >= MAX(1,M)\&.
.fi
.PP
.br
\fIK\fP 
.PP
.nf
          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\&.
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 
.PP
Univ\&. of California Berkeley 
.PP
Univ\&. of Colorado Denver 
.PP
NAG Ltd\&. 
.RE
.PP

.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.