org.netlib.lapack
Class Sspcon

java.lang.Object
  org.netlib.lapack.Sspcon

public class Sspcon
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
 *  =======
 *
 *  SSPCON estimates the reciprocal of the condition number (in the
 *  1-norm) of a real symmetric packed matrix A using the factorization
 *  A = U*D*U**T or A = L*D*L**T computed by SSPTRF.
 *
 *  An estimate is obtained for norm(inv(A)), and the reciprocal of the
 *  condition number is computed as RCOND = 1 / (ANORM * norm(inv(A))).
 *
 *  Arguments
 *  =========
 *
 *  UPLO    (input) CHARACTER*1
 *          Specifies whether the details of the factorization are stored
 *          as an upper or lower triangular matrix.
 *          = 'U':  Upper triangular, form is A = U*D*U**T;
 *          = 'L':  Lower triangular, form is A = L*D*L**T.
 *
 *  N       (input) INTEGER
 *          The order of the matrix A.  N >= 0.
 *
 *  AP      (input) REAL array, dimension (N*(N+1)/2)
 *          The block diagonal matrix D and the multipliers used to
 *          obtain the factor U or L as computed by SSPTRF, stored as a
 *          packed triangular matrix.
 *
 *  IPIV    (input) INTEGER array, dimension (N)
 *          Details of the interchanges and the block structure of D
 *          as determined by SSPTRF.
 *
 *  ANORM   (input) REAL
 *          The 1-norm of the original matrix A.
 *
 *  RCOND   (output) REAL
 *          The reciprocal of the condition number of the matrix A,
 *          computed as RCOND = 1/(ANORM * AINVNM), where AINVNM is an
 *          estimate of the 1-norm of inv(A) computed in this routine.
 *
 *  WORK    (workspace) REAL array, dimension (2*N)
 *
 *  IWORK    (workspace) INTEGER array, dimension (N)
 *
 *  INFO    (output) INTEGER
 *          = 0:  successful exit
 *          < 0:  if INFO = -i, the i-th argument had an illegal value
 *
 *  =====================================================================
 *
 *     .. Parameters ..

Constructor Summary

Sspcon()

Method Summary

static void

sspcon(java.lang.String uplo, int n, float[] ap, int _ap_offset, int[] ipiv, int _ipiv_offset, float anorm, floatW rcond, float[] work, int _work_offset, int[] iwork, int _iwork_offset, intW info)

Methods inherited from class java.lang.Object

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

Constructor Detail

Sspcon

public Sspcon()

Method Detail

sspcon

public static void sspcon(java.lang.String uplo,
                          int n,
                          float[] ap,
                          int _ap_offset,
                          int[] ipiv,
                          int _ipiv_offset,
                          float anorm,
                          floatW rcond,
                          float[] work,
                          int _work_offset,
                          int[] iwork,
                          int _iwork_offset,
                          intW info)