NAME

       dpotrs.f -

SYNOPSIS

   Functions/Subroutines
       subroutine dpotrs (UPLO, N, NRHS, A, LDA, B, LDB, INFO)
           DPOTRS

Function/Subroutine Documentation

   subroutine dpotrs (characterUPLO, integerN, integerNRHS, double precision, dimension( lda, *
       )A, integerLDA, double precision, dimension( ldb, * )B, integerLDB, integerINFO)
       DPOTRS

       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.

       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.

           NRHS

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

           A

                     A is 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

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

           B

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

           LDB

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

           INFO

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

       Author:
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Date:
           November 2011

       Definition at line 111 of file dpotrs.f.

Author

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