NAME

       sgesc2.f -

SYNOPSIS

   Functions/Subroutines
       subroutine sgesc2 (N, A, LDA, RHS, IPIV, JPIV, SCALE)
           SGESC2 solves a system of linear equations using the LU factorization with complete
           pivoting computed by sgetc2.

Function/Subroutine Documentation

   subroutine sgesc2 (integerN, real, dimension( lda, * )A, integerLDA, real, dimension( * )RHS,
       integer, dimension( * )IPIV, integer, dimension( * )JPIV, realSCALE)
       SGESC2 solves a system of linear equations using the LU factorization with complete
       pivoting computed by sgetc2.

       Purpose:

            SGESC2 solves a system of linear equations

                      A * X = scale* RHS

            with a general N-by-N matrix A using the LU factorization with
            complete pivoting computed by SGETC2.

       Parameters:
           N

                     N is INTEGER
                     The order of the matrix A.

           A

                     A is REAL array, dimension (LDA,N)
                     On entry, the  LU part of the factorization of the n-by-n
                     matrix A computed by SGETC2:  A = P * L * U * Q

           LDA

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

           RHS

                     RHS is REAL array, dimension (N).
                     On entry, the right hand side vector b.
                     On exit, the solution vector X.

           IPIV

                     IPIV is INTEGER array, dimension (N).
                     The pivot indices; for 1 <= i <= N, row i of the
                     matrix has been interchanged with row IPIV(i).

           JPIV

                     JPIV is INTEGER array, dimension (N).
                     The pivot indices; for 1 <= j <= N, column j of the
                     matrix has been interchanged with column JPIV(j).

           SCALE

                     SCALE is REAL
                      On exit, SCALE contains the scale factor. SCALE is chosen
                      0 <= SCALE <= 1 to prevent owerflow in the solution.

       Author:
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Date:
           September 2012

       Contributors:
           Bo Kagstrom and Peter Poromaa, Department of Computing Science, Umea University, S-901
           87 Umea, Sweden.

       Definition at line 115 of file sgesc2.f.

Author

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