table of contents
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/cgetrs.f(3) | Library Functions Manual | /home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/cgetrs.f(3) |
NAME¶
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/cgetrs.f
SYNOPSIS¶
Functions/Subroutines¶
subroutine CGETRS (trans, n, nrhs, a, lda, ipiv, b, ldb,
info)
CGETRS
Function/Subroutine Documentation¶
subroutine CGETRS (character trans, integer n, integer nrhs, complex, dimension( lda, * ) a, integer lda, integer, dimension( * ) ipiv, complex, dimension( ldb, * ) b, integer ldb, integer info)¶
CGETRS
Purpose:
!> !> CGETRS solves a system of linear equations !> A * X = B, A**T * X = B, or A**H * X = B !> with a general N-by-N matrix A using the LU factorization computed !> by CGETRF. !>
Parameters
TRANS
!> TRANS is CHARACTER*1 !> Specifies the form of the system of equations: !> = 'N': A * X = B (No transpose) !> = 'T': A**T * X = B (Transpose) !> = 'C': A**H * X = B (Conjugate transpose) !>
N
!> N is INTEGER !> The order of the matrix A. N >= 0. !>
NRHS
!> NRHS is INTEGER !> The number of right hand sides, i.e., the number of columns !> of the matrix B. NRHS >= 0. !>
A
!> A is COMPLEX array, dimension (LDA,N) !> The factors L and U from the factorization A = P*L*U !> as computed by CGETRF. !>
LDA
!> LDA is INTEGER !> The leading dimension of the array A. LDA >= max(1,N). !>
IPIV
!> IPIV is INTEGER array, dimension (N) !> The pivot indices from CGETRF; for 1<=i<=N, row i of the !> matrix was interchanged with row IPIV(i). !>
B
!> B is COMPLEX array, dimension (LDB,NRHS) !> On entry, the right hand side matrix B. !> On exit, the solution matrix X. !>
LDB
!> LDB is INTEGER !> The leading dimension of the array B. LDB >= max(1,N). !>
INFO
!> INFO is INTEGER !> = 0: successful exit !> < 0: if INFO = -i, the i-th argument had an illegal value !>
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Definition at line 120 of file cgetrs.f.
Author¶
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Version 3.12.0 | LAPACK |