org.netlib.lapack
Class SLAPLL

java.lang.Object
  org.netlib.lapack.SLAPLL

public class SLAPLL
extends java.lang.Object

SLAPLL is a simplified interface to the JLAPACK routine slapll.
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
 *  =======
 *
 *  Given two column vectors X and Y, let
 *
 *                       A = ( X Y ).
 *
 *  The subroutine first computes the QR factorization of A = Q*R,
 *  and then computes the SVD of the 2-by-2 upper triangular matrix R.
 *  The smaller singular value of R is returned in SSMIN, which is used
 *  as the measurement of the linear dependency of the vectors X and Y.
 *
 *  Arguments
 *  =========
 *
 *  N       (input) INTEGER
 *          The length of the vectors X and Y.
 *
 *  X       (input/output) REAL array,
 *                         dimension (1+(N-1)*INCX)
 *          On entry, X contains the N-vector X.
 *          On exit, X is overwritten.
 *
 *  INCX    (input) INTEGER
 *          The increment between successive elements of X. INCX > 0.
 *
 *  Y       (input/output) REAL array,
 *                         dimension (1+(N-1)*INCY)
 *          On entry, Y contains the N-vector Y.
 *          On exit, Y is overwritten.
 *
 *  INCY    (input) INTEGER
 *          The increment between successive elements of Y. INCY > 0.
 *
 *  SSMIN   (output) REAL
 *          The smallest singular value of the N-by-2 matrix A = ( X Y ).
 *
 *  =====================================================================
 *
 *     .. Parameters ..

Constructor Summary

SLAPLL()

Method Summary

static void

SLAPLL(int n, float[] x, int incx, float[] y, int incy, floatW ssmin)

Methods inherited from class java.lang.Object

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

Constructor Detail

SLAPLL

public SLAPLL()

Method Detail

SLAPLL

public static void SLAPLL(int n,
                          float[] x,
                          int incx,
                          float[] y,
                          int incy,
                          floatW ssmin)