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|subroutine ||zlapmt (FORWRD, M, N, X, LDX, K)|
| ||ZLAPMT performs a forward or backward permutation of the columns of a matrix. |
||complex*16, dimension( ldx, * )
||integer, dimension( * )
ZLAPMT performs a forward or backward permutation of the columns of a matrix.
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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.
FORWRD is LOGICAL
= .TRUE., forward permutation
= .FALSE., backward permutation
M is INTEGER
The number of rows of the matrix X. M >= 0.
N is INTEGER
The number of columns of the matrix X. N >= 0.
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 is INTEGER
The leading dimension of the array X, LDX >= MAX(1,M).
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
- Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
- September 2012
Definition at line 105 of file zlapmt.f.