dlarscl2.f - Man Page
SRC/dlarscl2.f
Synopsis
Functions/Subroutines
subroutine dlarscl2 (m, n, d, x, ldx)
DLARSCL2 performs reciprocal diagonal scaling on a matrix.
Function/Subroutine Documentation
subroutine dlarscl2 (integer m, integer n, double precision, dimension( * ) d, double precision, dimension( ldx, * ) x, integer ldx)
DLARSCL2 performs reciprocal diagonal scaling on a matrix.
Purpose:
DLARSCL2 performs a reciprocal diagonal scaling on a matrix: x <-- inv(D) * x where the diagonal matrix D is stored as a vector. Eventually to be replaced by BLAS_dge_diag_scale in the new BLAS standard.
- Parameters
M
M is INTEGER The number of rows of D and X. M >= 0.
N
N is INTEGER The number of columns of X. N >= 0.
D
D is DOUBLE PRECISION array, dimension (M) Diagonal matrix D, stored as a vector of length M.
X
X is DOUBLE PRECISION array, dimension (LDX,N) On entry, the matrix X to be scaled by D. On exit, the scaled matrix.
LDX
LDX is INTEGER The leading dimension of the matrix X. LDX >= M.
- Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Definition at line 89 of file dlarscl2.f.
Author
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Referenced By
The man page dlarscl2(3) is an alias of dlarscl2.f(3).
Tue Nov 28 2023 12:08:42 Version 3.12.0 LAPACK