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---
:name: dlapmr
:md5sum: b24c98083dc638c7e586e2e99b4a3ff4
:category: :subroutine
:arguments:
- forwrd:
:type: logical
:intent: input
- m:
:type: integer
:intent: input
- n:
:type: integer
:intent: input
- x:
:type: doublereal
:intent: input/output
:dims:
- ldx
- n
- ldx:
:type: integer
:intent: input
- k:
:type: integer
:intent: input/output
:dims:
- m
:substitutions: {}
:fortran_help: " SUBROUTINE DLAPMR( FORWRD, M, N, X, LDX, K )\n\n\
* Purpose\n\
* =======\n\
*\n\
* DLAPMR rearranges the rows of the M by N matrix X as specified\n\
* by the permutation K(1),K(2),...,K(M) of the integers 1,...,M.\n\
* If FORWRD = .TRUE., forward permutation:\n\
*\n\
* X(K(I),*) is moved X(I,*) for I = 1,2,...,M.\n\
*\n\
* If FORWRD = .FALSE., backward permutation:\n\
*\n\
* X(I,*) is moved to X(K(I),*) for I = 1,2,...,M.\n\
*\n\n\
* Arguments\n\
* =========\n\
*\n\
* FORWRD (input) LOGICAL\n\
* = .TRUE., forward permutation\n\
* = .FALSE., backward permutation\n\
*\n\
* M (input) INTEGER\n\
* The number of rows of the matrix X. M >= 0.\n\
*\n\
* N (input) INTEGER\n\
* The number of columns of the matrix X. N >= 0.\n\
*\n\
* X (input/output) DOUBLE PRECISION array, dimension (LDX,N)\n\
* On entry, the M by N matrix X.\n\
* On exit, X contains the permuted matrix X.\n\
*\n\
* LDX (input) INTEGER\n\
* The leading dimension of the array X, LDX >= MAX(1,M).\n\
*\n\
* K (input/output) INTEGER array, dimension (M)\n\
* On entry, K contains the permutation vector. K is used as\n\
* internal workspace, but reset to its original value on\n\
* output.\n\
*\n\n\
* =====================================================================\n\
*\n\
* .. Local Scalars ..\n INTEGER I, IN, J, JJ\n DOUBLE PRECISION TEMP\n\
* ..\n"
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