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

NAME
       SRC/chetrs_rook.f

SYNOPSIS
   Functions/Subroutines
       subroutine chetrs_rook (uplo, n, nrhs, a, lda, ipiv, b, ldb, info)
           CHETRS_ROOK computes the solution to a system of linear equations A
           * X = B for HE matrices using factorization obtained with one of
           the bounded diagonal pivoting methods (max 2 interchanges)

Function/Subroutine Documentation
   subroutine chetrs_rook (character uplo, integer n, integer nrhs, complex,
       dimension( lda, * ) a, integer lda, integer, dimension( * ) ipiv,
       complex, dimension( ldb, * ) b, integer ldb, integer info)
       CHETRS_ROOK computes the solution to a system of linear equations A * X
       = B for HE matrices using factorization obtained with one of the
       bounded diagonal pivoting methods (max 2 interchanges)

       Purpose:


            CHETRS_ROOK solves a system of linear equations A*X = B with a complex
            Hermitian matrix A using the factorization A = U*D*U**H or
            A = L*D*L**H computed by CHETRF_ROOK.

       Parameters
           UPLO

                     UPLO is CHARACTER*1
                     Specifies whether the details of the factorization are stored
                     as an upper or lower triangular matrix.
                     = 'U':  Upper triangular, form is A = U*D*U**H;
                     = 'L':  Lower triangular, form is A = L*D*L**H.

           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 COMPLEX array, dimension (LDA,N)
                     The block diagonal matrix D and the multipliers used to
                     obtain the factor U or L as computed by CHETRF_ROOK.

           LDA

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

           IPIV

                     IPIV is INTEGER array, dimension (N)
                     Details of the interchanges and the block structure of D
                     as determined by CHETRF_ROOK.

           B

                     B is COMPLEX 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.

       Contributors:


             November 2013,  Igor Kozachenko,
                             Computer Science Division,
                             University of California, Berkeley

             September 2007, Sven Hammarling, Nicholas J. Higham, Craig Lucas,
                             School of Mathematics,
                             University of Manchester

       Definition at line 134 of file chetrs_rook.f.

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

LAPACK                          Version 3.12.0            SRC/chetrs_rook.f(3)