org.netlib.lapack
Class DLAPMT
java.lang.Object
org.netlib.lapack.DLAPMT
public class DLAPMT
- extends java.lang.Object
DLAPMT is a simplified interface to the JLAPACK routine dlapmt.
This interface converts Java-style 2D row-major arrays into
the 1D column-major linearized arrays expected by the lower
level JLAPACK routines. Using this interface also allows you
to omit offset and leading dimension arguments. However, because
of these conversions, these routines will be slower than the low
level ones. Following is the description from the original Fortran
source. Contact seymour@cs.utk.edu with any questions.
* ..
*
* 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.
*
* Arguments
* =========
*
* FORWRD (input) LOGICAL
* = .TRUE., forward permutation
* = .FALSE., backward permutation
*
* M (input) INTEGER
* The number of rows of the matrix X. M >= 0.
*
* N (input) INTEGER
* The number of columns of the matrix X. N >= 0.
*
* X (input/output) DOUBLE PRECISION array, dimension (LDX,N)
* On entry, the M by N matrix X.
* On exit, X contains the permuted matrix X.
*
* LDX (input) INTEGER
* The leading dimension of the array X, LDX >= MAX(1,M).
*
* K (input) INTEGER array, dimension (N)
* On entry, K contains the permutation vector.
*
* =====================================================================
*
* .. Local Scalars ..
Method Summary |
static void |
DLAPMT(boolean forwrd,
int m,
int n,
double[][] x,
int[] k)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
DLAPMT
public DLAPMT()
DLAPMT
public static void DLAPMT(boolean forwrd,
int m,
int n,
double[][] x,
int[] k)