# clapmr.f - Man Page

SRC/clapmr.f

## Synopsis

### Functions/Subroutines

subroutine clapmr (forwrd, m, n, x, ldx, k)
CLAPMR rearranges rows of a matrix as specified by a permutation vector.

## Function/Subroutine Documentation

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

CLAPMR rearranges rows of a matrix as specified by a permutation vector.

Purpose:

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

X(K(I),*) is moved X(I,*) for I = 1,2,...,M.

If FORWRD = .FALSE., backward permutation:

X(I,*) is moved to X(K(I),*) for I = 1,2,...,M.```
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 (M)
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

NAG Ltd.

Definition at line 103 of file clapmr.f.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

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

Tue Nov 28 2023 12:08:41 Version 3.12.0 LAPACK