org.netlib.lapack
Class Dlasq6
java.lang.Object
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 ..
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 |
Dlasq6
public Dlasq6()
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)