table of contents
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/dgesc2.f(3) | Library Functions Manual | /home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/dgesc2.f(3) |
NAME¶
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/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 (integer n, double precision, dimension( lda, * ) a, integer lda, double precision, dimension( * ) rhs, integer, dimension( * ) ipiv, integer, dimension( * ) jpiv, double precision scale)¶
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 overflow in the solution. !>
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Contributors:
Bo Kagstrom and Peter Poromaa, Department of Computing
Science, Umea University, S-901 87 Umea, Sweden.
Definition at line 113 of file dgesc2.f.
Author¶
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.12.0 | LAPACK |