zgesc2.f - Online Linux Manual PageSection : 3
Updated : Tue Nov 14 2017
Source : Version 3.8.0
Note : LAPACK
NAMEzgesc2.f
SYNOPSIS
Functions/Subroutinessubroutine zgesc2 (N, A, LDA, RHS, IPIV, JPIV, SCALE)
ZGESC2 solves a system of linear equations using the LU factorization with complete pivoting computed by sgetc2.
Function/Subroutine Documentation
subroutine zgesc2 (integer N, complex*16, dimension( lda, * ) A, integer LDA, complex*16, dimension( * ) RHS, integer, dimension( * ) IPIV, integer, dimension( * ) JPIV, double precision SCALE)ZGESC2 solves a system of linear equations using the LU factorization with complete pivoting computed by sgetc2. Purpose: ZGESC2 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 ZGETC2.Parameters: N N is INTEGER
The number of columns of the matrix A.
A A is COMPLEX*16 array, dimension (LDA, N)
On entry, the LU part of the factorization of the n-by-n
matrix A computed by ZGETC2: A = P * L * U * Q
LDA LDA is INTEGER
The leading dimension of the array A. LDA >= max(1, N).
RHS RHS is COMPLEX*16 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: November 2017 Contributors: Bo Kagstrom and Peter Poromaa, Department of Computing Science, Umea University, S-901 87 Umea, Sweden. Definition at line 117 of file zgesc2.f.
AuthorGenerated automatically by Doxygen for LAPACK from the source code. 0
Johanes Gumabo
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