SRC/spotri.f(3)            Library Functions Manual            SRC/spotri.f(3)

NAME
       SRC/spotri.f

SYNOPSIS
   Functions/Subroutines
       subroutine spotri (uplo, n, a, lda, info)
           SPOTRI

Function/Subroutine Documentation
   subroutine spotri (character uplo, integer n, real, dimension( lda, * ) a,
       integer lda, integer info)
       SPOTRI

       Purpose:


            SPOTRI 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 SPOTRF.

       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 REAL array, dimension (LDA,N)
                     On entry, the triangular factor U or L from the Cholesky
                     factorization A = U**T*U or A = L*L**T, as computed by
                     SPOTRF.
                     On exit, the upper or lower triangle of the (symmetric)
                     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.

       Definition at line 94 of file spotri.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

LAPACK                          Version 3.12.0                 SRC/spotri.f(3)