org.netlib.lapack
Class SLASQ6

java.lang.Object
  org.netlib.lapack.SLASQ6

public class SLASQ6
extends java.lang.Object

SLASQ6 is a simplified interface to the JLAPACK routine slasq6.
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
 *  =======
 *
 *  SLASQ6 computes one dqd (shift equal to zero) transform in
 *  ping-pong form, with protection against underflow and overflow.
 *
 *  Arguments
 *  =========
 *
 *  I0    (input) INTEGER
 *        First index.
 *
 *  N0    (input) INTEGER
 *        Last index.
 *
 *  Z     (input) REAL array, dimension ( 4*N )
 *        Z holds the qd array. EMIN is stored in Z(4*N0) to avoid
 *        an extra argument.
 *
 *  PP    (input) INTEGER
 *        PP=0 for ping, PP=1 for pong.
 *
 *  DMIN  (output) REAL
 *        Minimum value of d.
 *
 *  DMIN1 (output) REAL
 *        Minimum value of d, excluding D( N0 ).
 *
 *  DMIN2 (output) REAL
 *        Minimum value of d, excluding D( N0 ) and D( N0-1 ).
 *
 *  DN    (output) REAL
 *        d(N0), the last value of d.
 *
 *  DNM1  (output) REAL
 *        d(N0-1).
 *
 *  DNM2  (output) REAL
 *        d(N0-2).
 *
 *  =====================================================================
 *
 *     .. Parameter ..

Constructor Summary

SLASQ6()

Method Summary

static void

SLASQ6(int i0, int n0, float[] z, int pp, floatW dmin, floatW dmin1, floatW dmin2, floatW dn, floatW dnm1, floatW dnm2)

Methods inherited from class java.lang.Object

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

Constructor Detail

SLASQ6

public SLASQ6()

Method Detail

SLASQ6

public static void SLASQ6(int i0,
                          int n0,
                          float[] z,
                          int pp,
                          floatW dmin,
                          floatW dmin1,
                          floatW dmin2,
                          floatW dn,
                          floatW dnm1,
                          floatW dnm2)