org.netlib.lapack
Class Dlasq6

java.lang.Object
  extended by org.netlib.lapack.Dlasq6

public class Dlasq6
extends java.lang.Object

Following is the description from the original
Fortran source.  For each array argument, the Java
version will include an integer offset parameter, so
the arguments may not match the description exactly.
Contact seymour@cs.utk.edu with any questions.

* .. * * Purpose * ======= * * DLASQ6 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) DOUBLE PRECISION 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) DOUBLE PRECISION * Minimum value of d. * * DMIN1 (output) DOUBLE PRECISION * Minimum value of d, excluding D( N0 ). * * DMIN2 (output) DOUBLE PRECISION * Minimum value of d, excluding D( N0 ) and D( N0-1 ). * * DN (output) DOUBLE PRECISION * d(N0), the last value of d. * * DNM1 (output) DOUBLE PRECISION * d(N0-1). * * DNM2 (output) DOUBLE PRECISION * d(N0-2). * * ===================================================================== * * .. Parameter ..


Constructor Summary
Dlasq6()
           
 
Method Summary
static void dlasq6(int i0, int n0, double[] z, int _z_offset, int pp, doubleW dmin, doubleW dmin1, doubleW dmin2, doubleW dn, doubleW dnm1, doubleW dnm2)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Dlasq6

public Dlasq6()
Method Detail

dlasq6

public static void dlasq6(int i0,
                          int n0,
                          double[] z,
                          int _z_offset,
                          int pp,
                          doubleW dmin,
                          doubleW dmin1,
                          doubleW dmin2,
                          doubleW dn,
                          doubleW dnm1,
                          doubleW dnm2)