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

NAME
       SRC/sgetrs.f

SYNOPSIS
   Functions/Subroutines
       subroutine sgetrs (trans, n, nrhs, a, lda, ipiv, b, ldb, info)
           SGETRS

Function/Subroutine Documentation
   subroutine sgetrs (character trans, integer n, integer nrhs, real,
       dimension( lda, * ) a, integer lda, integer, dimension( * ) ipiv, real,
       dimension( ldb, * ) b, integer ldb, integer info)
       SGETRS

       Purpose:


           !>
           !> SGETRS solves a system of linear equations
           !>    A * X = B  or  A**T * X = B
           !> with a general N-by-N matrix A using the LU factorization computed
           !> by SGETRF.
           !>

       Parameters
           TRANS

           !>          TRANS is CHARACTER*1
           !>          Specifies the form of the system of equations:
           !>          = 'N':  A * X = B  (No transpose)
           !>          = 'T':  A**T* X = B  (Transpose)
           !>          = 'C':  A**T* X = B  (Conjugate transpose = Transpose)
           !>

           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)
           !>          The factors L and U from the factorization A = P*L*U
           !>          as computed by SGETRF.
           !>

           LDA

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

           IPIV

           !>          IPIV is INTEGER array, dimension (N)
           !>          The pivot indices from SGETRF; for 1<=i<=N, row i of the
           !>          matrix was interchanged with row IPIV(i).
           !>

           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 120 of file sgetrs.f.

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

LAPACK                          Version 3.12.0                 SRC/sgetrs.f(3)