cla_gerpvgrw.f3
Function/Subroutine Documentation
real function cla_gerpvgrw (integer n, integer ncols, complex, dimension( lda, * ) a, integer lda, complex, dimension( ldaf, * ) af, integer ldaf)
CLA_GERPVGRW multiplies a square real matrix by a complex matrix.
Purpose:
!> !> !> CLA_GERPVGRW computes the reciprocal pivot growth factor !> norm(A)/norm(U). The norm is used. If this is !> much less than 1, the stability of the LU factorization of the !> (equilibrated) matrix A could be poor. This also means that the !> solution X, estimated condition numbers, and error bounds could be !> unreliable. !>
Parameters
N
!> N is INTEGER !> The number of linear equations, i.e., the order of the !> matrix A. N >= 0. !>
NCOLS
!> NCOLS is INTEGER !> The number of columns of the matrix A. NCOLS >= 0. !>
A
!> A is COMPLEX array, dimension (LDA,N) !> On entry, the N-by-N matrix A. !>
LDA
!> LDA is INTEGER !> The leading dimension of the array A. LDA >= max(1,N). !>
AF
!> AF is COMPLEX array, dimension (LDAF,N) !> The factors L and U from the factorization !> A = P*L*U as computed by CGETRF. !>
LDAF
!> LDAF is INTEGER !> The leading dimension of the array AF. LDAF >= max(1,N). !>
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Definition at line 97 of file cla_gerpvgrw.f.
History
- Arch Linux 2026-11-01: the text shown here
- Debian 9 (Stretch)
- Debian 8 (Jessie)
- Debian 7 (Wheezy)