
NAMEzgesc2.f SYNOPSISFunctions/Subroutinessubroutine zgesc2 (N, A, LDA, RHS, IPIV, JPIV, SCALE) Function/Subroutine Documentationsubroutine zgesc2 (integerN, complex*16, dimension( lda, * )A, integerLDA, complex*16, dimension( * )RHS, integer, dimension( * )IPIV, integer, dimension( * )JPIV, double precisionSCALE)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 NbyN matrix A using the LU factorization with complete pivoting computed by ZGETC2. N
Author:
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 nbyn matrix A computed by ZGETC2: A = P * L * U * QLDA 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. 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, S901 87 Umea, Sweden.
Definition at line 116 of file zgesc2.f.
AuthorGenerated automatically by Doxygen for LAPACK from the source code.
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