Overview | Package | Class | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## org.netlib.lapack
Class Sgecon

    java.lang.Object
      org.netlib.lapack.Sgecon

    public class Sgecon

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
     *  =======
     *
     *  SGECON estimates the reciprocal of the condition number of a general

     *  real matrix A, in either the 1-norm or the infinity-norm, using
     *  the LU factorization computed by SGETRF.
     *
     *  An estimate is obtained for norm(inv(A)), and the reciprocal of the
     *  condition number is computed as
     *     RCOND = 1 / ( norm(A) * norm(inv(A)) ).
     *
     *  Arguments
     *  =========
     *
     *  NORM    (input) CHARACTER*1
     *          Specifies whether the 1-norm condition number or the
     *          infinity-norm condition number is required:
     *          = '1' or 'O':  1-norm;
     *          = 'I':         Infinity-norm.
     *
     *  N       (input) INTEGER
     *          The order of the matrix A.  N >= 0.
     *
     *  A       (input) REAL array, dimension (LDA,N)
     *          The factors L and U from the factorization A = P*L*U
     *          as computed by SGETRF.
     *
     *  LDA     (input) INTEGER
     *          The leading dimension of the array A.  LDA >= max(1,N).
     *
     *  ANORM   (input) REAL
     *          If NORM = '1' or 'O', the 1-norm of the original matrix A.
     *          If NORM = 'I', the infinity-norm of the original matrix A.
     *
     *  RCOND   (output) REAL
     *          The reciprocal of the condition number of the matrix A,
     *          computed as RCOND = 1/(norm(A) * norm(inv(A))).
     *
     *  WORK    (workspace) REAL array, dimension (4*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
`Sgecon()`

Method Summary
`static void` | `sgecon(java.lang.String norm, int n, float[] a, int _a_offset, int lda, 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

### Sgecon

    public Sgecon()

Method Detail

### sgecon

    public static void sgecon(java.lang.String norm,
                              int n,
                              float[] a,
                              int _a_offset,
                              int lda,
                              float anorm,
                              floatW rcond,
                              float[] work,
                              int _work_offset,
                              int[] iwork,
                              int _iwork_offset,
                              intW info)

Overview | Package | Class | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD