zposl

NAME

zposl - (obsolete) solve the linear system Ax = b for a symmetric positive definite matrix A, which has been Cholesky-factored by CPOCO or CPOFA, and vectors b and x.

SYNOPSIS

  SUBROUTINE ZPOSL( A, LDA, N, B)
  DOUBLE COMPLEX A(LDA,*), B(*)
  INTEGER LDA, N
 
  SUBROUTINE ZPOSL_64( A, LDA, N, B)
  DOUBLE COMPLEX A(LDA,*), B(*)
  INTEGER*8 LDA, N

C INTERFACE

#include <sunperf.h>

void zposl(doublecomplex *a, int lda, int n, doublecomplex *b);

void zposl_64(doublecomplex *a, long lda, long n, doublecomplex *b);

ARGUMENTS

* A (input): Cholesky factorization of the matrix A, as computed by CPOCO or CPOFA.
* LDA (input): Leading dimension of the array A as specified in a dimension or type statement. LDA >= max(1,N).
* N (input): Order of the matrix A. N >= 0.
* B (input/output): On entry, the right-hand side vector b. On exit, the solution vector x.