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Class org.netlib.lapack.Dppcon

java.lang.Object
   |
   +----org.netlib.lapack.Dppcon

public class Dppcon

extends 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
 *  =======
 *
 *  DPPCON estimates the reciprocal of the condition number (in the
 *  1-norm) of a real symmetric positive definite packed matrix using
 *  the Cholesky factorization A = U**T*U or A = L*L**T computed by
 *  DPPTRF.
 *
 *  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
 *          = 'U':  Upper triangle of A is stored;
 *          = 'L':  Lower triangle of A is stored.
 *
 *  N       (input) INTEGER
 *          The order of the matrix A.  N >= 0.
 *
 *  AP      (input) DOUBLE PRECISION array, dimension (N*(N+1)/2)
 *          The triangular factor U or L from the Cholesky factorization
 *          A = U**T*U or A = L*L**T, packed columnwise in a linear
 *          array.  The j-th column of U or L is stored in the array AP
 *          as follows:
 *          if UPLO = 'U', AP(i + (j-1)*j/2) = U(i,j) for 1<=i<=j;
 *          if UPLO = 'L', AP(i + (j-1)*(2n-j)/2) = L(i,j) for j<=i<=n.
 *
 *  ANORM   (input) DOUBLE PRECISION
 *          The 1-norm (or infinity-norm) of the symmetric matrix A.
 *
 *  RCOND   (output) DOUBLE PRECISION
 *          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) 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 ..

Dppcon()

dppcon(String, int, double[], int, double, doubleW, double[], int, int[], int, intW)

 public Dppcon()

 public static void dppcon(String uplo,
                           int n,
                           double ap[],
                           int _ap_offset,
                           double anorm,
                           doubleW rcond,
                           double work[],
                           int _work_offset,
                           int iwork[],
                           int _iwork_offset,
                           intW info)

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