org.netlib.lapack
Class Dpptri

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

public class Dpptri
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 * ======= * * DPPTRI computes the inverse of a real symmetric positive definite * matrix A using the Cholesky factorization A = U**T*U or A = L*L**T * computed by DPPTRF. * * Arguments * ========= * * UPLO (input) CHARACTER*1 * = 'U': Upper triangular factor is stored in AP; * = 'L': Lower triangular factor is stored in AP. * * N (input) INTEGER * The order of the matrix A. N >= 0. * * AP (input/output) DOUBLE PRECISION array, dimension (N*(N+1)/2) * On entry, the triangular factor U or L from the Cholesky * factorization A = U**T*U or A = L*L**T, packed columnwise as * 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. * * On exit, the upper or lower triangle of the (symmetric) * inverse of A, overwriting the input factor U or L. * * INFO (output) INTEGER * = 0: successful exit * < 0: if INFO = -i, the i-th argument had an illegal value * > 0: if INFO = i, the (i,i) element of the factor U or L is * zero, and the inverse could not be computed. * * ===================================================================== * * .. Parameters ..


Constructor Summary
Dpptri()
           
 
Method Summary
static void dpptri(java.lang.String uplo, int n, double[] ap, int _ap_offset, intW info)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Dpptri

public Dpptri()
Method Detail

dpptri

public static void dpptri(java.lang.String uplo,
                          int n,
                          double[] ap,
                          int _ap_offset,
                          intW info)