SRC/ssytrs_aa_2stage.f(3)  Library Functions Manual  SRC/ssytrs_aa_2stage.f(3)

NAME
       SRC/ssytrs_aa_2stage.f

SYNOPSIS
   Functions/Subroutines
       subroutine ssytrs_aa_2stage (uplo, n, nrhs, a, lda, tb, ltb, ipiv,
           ipiv2, b, ldb, info)
           SSYTRS_AA_2STAGE

Function/Subroutine Documentation
   subroutine ssytrs_aa_2stage (character uplo, integer n, integer nrhs, real,
       dimension( lda, * ) a, integer lda, real, dimension( * ) tb, integer
       ltb, integer, dimension( * ) ipiv, integer, dimension( * ) ipiv2, real,
       dimension( ldb, * ) b, integer ldb, integer info)
       SSYTRS_AA_2STAGE

       Purpose:


           !>
           !> SSYTRS_AA_2STAGE solves a system of linear equations A*X = B with a real
           !> symmetric matrix A using the factorization A = U**T*T*U or
           !> A = L*T*L**T computed by SSYTRF_AA_2STAGE.
           !>

       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**T*T*U;
           !>          = 'L':  Lower triangular, form is A = L*T*L**T.
           !>

           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 REAL array, dimension (LDA,N)
           !>          Details of factors computed by SSYTRF_AA_2STAGE.
           !>

           LDA

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

           TB

           !>          TB is REAL array, dimension (LTB)
           !>          Details of factors computed by SSYTRF_AA_2STAGE.
           !>

           LTB

           !>          LTB is INTEGER
           !>          The size of the array TB. LTB >= 4*N.
           !>

           IPIV

           !>          IPIV is INTEGER array, dimension (N)
           !>          Details of the interchanges as computed by
           !>          SSYTRF_AA_2STAGE.
           !>

           IPIV2

           !>          IPIV2 is INTEGER array, dimension (N)
           !>          Details of the interchanges as computed by
           !>          SSYTRF_AA_2STAGE.
           !>

           B

           !>          B is REAL 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.

       Definition at line 137 of file ssytrs_aa_2stage.f.

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

LAPACK                          Version 3.12.0       SRC/ssytrs_aa_2stage.f(3)