Provided by: liblapack-doc_3.3.1-1_all bug

NAME

       LAPACK-3  - solves a system of linear equations A*X = B with a symmetric positive definite
       matrix A using the Cholesky factorization A = U**T*U or A = L*L**T computed by DPOTRF

SYNOPSIS

       SUBROUTINE DPOTRS( UPLO, N, NRHS, A, LDA, B, LDB, INFO )

           CHARACTER      UPLO

           INTEGER        INFO, LDA, LDB, N, NRHS

           DOUBLE         PRECISION A( LDA, * ), B( LDB, * )

PURPOSE

       DPOTRS solves a system of linear equations A*X = B  with  a  symmetric  positive  definite
       matrix A using the Cholesky factorization A = U**T*U or A = L*L**T computed by DPOTRF.

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.

        NRHS    (input) INTEGER
                The number of right hand sides, i.e., the number of columns
                of the matrix B.  NRHS >= 0.

        A       (input) DOUBLE PRECISION array, dimension (LDA,N)
                The triangular factor U or L from the Cholesky factorization
                A = U**T*U or A = L*L**T, as computed by DPOTRF.

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

        B       (input/output) DOUBLE PRECISION array, dimension (LDB,NRHS)
                On entry, the right hand side matrix B.
                On exit, the solution matrix X.

        LDB     (input) INTEGER
                The leading dimension of the array B.  LDB >= max(1,N).

        INFO    (output) INTEGER
                = 0:  successful exit
                < 0:  if INFO = -i, the i-th argument had an illegal value

 LAPACK routine (version 3.3.1)             April 2011                            DPOTRS(3lapack)