org.netlib.lapack
Class SLASCL

java.lang.Object
  org.netlib.lapack.SLASCL

public class SLASCL
extends java.lang.Object

SLASCL is a simplified interface to the JLAPACK routine slascl.
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
 *  =======
 *
 *  SLASCL multiplies the M by N real matrix A by the real scalar
 *  CTO/CFROM.  This is done without over/underflow as long as the final

 *  result CTO*A(I,J)/CFROM does not over/underflow. TYPE specifies that

 *  A may be full, upper triangular, lower triangular, upper Hessenberg,

 *  or banded.
 *
 *  Arguments
 *  =========
 *
 *  TYPE    (input) CHARACTER*1
 *          TYPE indices the storage type of the input matrix.
 *          = 'G':  A is a full matrix.
 *          = 'L':  A is a lower triangular matrix.
 *          = 'U':  A is an upper triangular matrix.
 *          = 'H':  A is an upper Hessenberg matrix.
 *          = 'B':  A is a symmetric band matrix with lower bandwidth KL

 *                  and upper bandwidth KU and with the only the lower
 *                  half stored.
 *          = 'Q':  A is a symmetric band matrix with lower bandwidth KL

 *                  and upper bandwidth KU and with the only the upper
 *                  half stored.
 *          = 'Z':  A is a band matrix with lower bandwidth KL and upper

 *                  bandwidth KU.
 *
 *  KL      (input) INTEGER
 *          The lower bandwidth of A.  Referenced only if TYPE = 'B',
 *          'Q' or 'Z'.
 *
 *  KU      (input) INTEGER
 *          The upper bandwidth of A.  Referenced only if TYPE = 'B',
 *          'Q' or 'Z'.
 *
 *  CFROM   (input) REAL
 *  CTO     (input) REAL
 *          The matrix A is multiplied by CTO/CFROM. A(I,J) is computed
 *          without over/underflow if the final result CTO*A(I,J)/CFROM
 *          can be represented without over/underflow.  CFROM must be
 *          nonzero.
 *
 *  M       (input) INTEGER
 *          The number of rows of the matrix A.  M >= 0.
 *
 *  N       (input) INTEGER
 *          The number of columns of the matrix A.  N >= 0.
 *
 *  A       (input/output) REAL array, dimension (LDA,M)
 *          The matrix to be multiplied by CTO/CFROM.  See TYPE for the
 *          storage type.
 *
 *  LDA     (input) INTEGER
 *          The leading dimension of the array A.  LDA >= max(1,M).
 *
 *  INFO    (output) INTEGER
 *          0  - successful exit
 *          <0 - if INFO = -i, the i-th argument had an illegal value.
 *
 *  =====================================================================
 *
 *     .. Parameters ..

Constructor Summary

SLASCL()

Method Summary

static void

SLASCL(java.lang.String type, int kl, int ku, float cfrom, float cto, int m, int n, float[][] a, intW info)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SLASCL

public SLASCL()

Method Detail

SLASCL

public static void SLASCL(java.lang.String type,
                          int kl,
                          int ku,
                          float cfrom,
                          float cto,
                          int m,
                          int n,
                          float[][] a,
                          intW info)