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CentOS 7.0 - man page for dgesc2 (centos section 3)

dgesc2.f(3)							      LAPACK							       dgesc2.f(3)

NAME
dgesc2.f -
SYNOPSIS
Functions/Subroutines subroutine dgesc2 (N, A, LDA, RHS, IPIV, JPIV, SCALE) DGESC2 solves a system of linear equations using the LU factorization with complete pivoting computed by sgetc2. Function/Subroutine Documentation subroutine dgesc2 (integerN, double precision, dimension( lda, * )A, integerLDA, double precision, dimension( * )RHS, integer, dimension( * )IPIV, integer, dimension( * )JPIV, double precisionSCALE) DGESC2 solves a system of linear equations using the LU factorization with complete pivoting computed by sgetc2. Purpose: DGESC2 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 DGETC2. Parameters: N N is INTEGER The order of the matrix A. A A is DOUBLE PRECISION array, dimension (LDA,N) On entry, the LU part of the factorization of the n-by-n matrix A computed by DGETC2: A = P * L * U * Q LDA LDA is INTEGER The leading dimension of the array A. LDA >= max(1, N). RHS RHS is DOUBLE PRECISION 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 DOUBLE PRECISION 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 dgesc2.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.2 Tue Sep 25 2012 dgesc2.f(3)
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