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## org.netlib.lapack
Class DTRCON

    java.lang.Object
      org.netlib.lapack.DTRCON

    public class DTRCON

extends java.lang.Object

    DTRCON is a simplified interface to the JLAPACK routine dtrcon.
    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
     *  =======
     *
     *  DTRCON estimates the reciprocal of the condition number of a
     *  triangular matrix A, in either the 1-norm or the infinity-norm.
     *
     *  The norm of A is computed and an estimate is obtained for
     *  norm(inv(A)), then 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.
     *
     *  UPLO    (input) CHARACTER*1
     *          = 'U':  A is upper triangular;
     *          = 'L':  A is lower triangular.
     *
     *  DIAG    (input) CHARACTER*1
     *          = 'N':  A is non-unit triangular;
     *          = 'U':  A is unit triangular.
     *
     *  N       (input) INTEGER
     *          The order of the matrix A.  N >= 0.
     *
     *  A       (input) DOUBLE PRECISION array, dimension (LDA,N)
     *          The triangular matrix A.  If UPLO = 'U', the leading N-by-N
     *          upper triangular part of the array A contains the upper
     *          triangular matrix, and the strictly lower triangular part of

     *          A is not referenced.  If UPLO = 'L', the leading N-by-N lower
     *          triangular part of the array A contains the lower triangular

     *          matrix, and the strictly upper triangular part of A is not
     *          referenced.  If DIAG = 'U', the diagonal elements of A are
     *          also not referenced and are assumed to be 1.
     *
     *  LDA     (input) INTEGER
     *          The leading dimension of the array A.  LDA >= max(1,N).
     *
     *  RCOND   (output) DOUBLE PRECISION
     *          The reciprocal of the condition number of the matrix A,
     *          computed as RCOND = 1/(norm(A) * norm(inv(A))).
     *
     *  WORK    (workspace) DOUBLE PRECISION array, dimension (3*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
`DTRCON()`

Method Summary
`static void` | `DTRCON(java.lang.String norm, java.lang.String uplo, java.lang.String diag, int n, double[][] a, doubleW rcond, double[] work, int[] iwork, intW info)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### DTRCON

    public DTRCON()

Method Detail

### DTRCON

    public static void DTRCON(java.lang.String norm,
                              java.lang.String uplo,
                              java.lang.String diag,
                              int n,
                              double[][] a,
                              doubleW rcond,
                              double[] work,
                              int[] iwork,
                              intW info)

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