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 ..
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
SLASQ6
public SLASQ6()
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)