cpotri.f man page

cpotri.f

Synopsis

Functions/Subroutines

subroutine cpotri (UPLO, N, A, LDA, INFO)
CPOTRI

Function/Subroutine Documentation

subroutine cpotri (character UPLO, integer N, complex, dimension( lda, * ) A, integer LDA, integer INFO)

CPOTRI  

Purpose:

 CPOTRI computes the inverse of a complex Hermitian positive definite
 matrix A using the Cholesky factorization A = U**H*U or A = L*L**H
 computed by CPOTRF.
Parameters:

UPLO

          UPLO is CHARACTER*1
          = 'U':  Upper triangle of A is stored;
          = 'L':  Lower triangle of A is stored.

N

          N is INTEGER
          The order of the matrix A.  N >= 0.

A

          A is COMPLEX array, dimension (LDA,N)
          On entry, the triangular factor U or L from the Cholesky
          factorization A = U**H*U or A = L*L**H, as computed by
          CPOTRF.
          On exit, the upper or lower triangle of the (Hermitian)
          inverse of A, overwriting the input factor U or L.

LDA

          LDA is INTEGER
          The leading dimension of the array A.  LDA >= max(1,N).

INFO

          INFO is 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.
Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

December 2016

Definition at line 97 of file cpotri.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

The man page cpotri(3) is an alias of cpotri.f(3).

Tue Nov 14 2017 Version 3.8.0 LAPACK