org.netlib.lapack
Class Dlarrr

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

public class Dlarrr
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 * ======= * * Perform tests to decide whether the symmetric tridiagonal matrix T * warrants expensive computations which guarantee high relative accurac * in the eigenvalues. * * Arguments * ========= * * N (input) INTEGER * The order of the matrix. N > 0. * * D (input) DOUBLE PRECISION array, dimension (N) * The N diagonal elements of the tridiagonal matrix T. * * E (input/output) DOUBLE PRECISION array, dimension (N) * On entry, the first (N-1) entries contain the subdiagonal * elements of the tridiagonal matrix T; E(N) is set to ZERO. * * INFO (output) INTEGER * INFO = 0(default) : the matrix warrants computations preservi * relative accuracy. * INFO = 1 : the matrix warrants computations guarante * only absolute accuracy. * * Further Details * =============== * * Based on contributions by * Beresford Parlett, University of California, Berkeley, USA * Jim Demmel, University of California, Berkeley, USA * Inderjit Dhillon, University of Texas, Austin, USA * Osni Marques, LBNL/NERSC, USA * Christof Voemel, University of California, Berkeley, USA * * ===================================================================== * * .. Parameters ..


Constructor Summary
Dlarrr()
           
 
Method Summary
static void dlarrr(int n, double[] d, int _d_offset, double[] e, int _e_offset, intW info)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Dlarrr

public Dlarrr()
Method Detail

dlarrr

public static void dlarrr(int n,
                          double[] d,
                          int _d_offset,
                          double[] e,
                          int _e_offset,
                          intW info)