larscl2(3) | LAPACK | larscl2(3) |
larscl2 - larscl2: reciprocal diagonal scale matrix, A = D^{-1} A
subroutine clarscl2 (m, n, d, x, ldx)
CLARSCL2 performs reciprocal diagonal scaling on a matrix. subroutine
dlarscl2 (m, n, d, x, ldx)
DLARSCL2 performs reciprocal diagonal scaling on a matrix. subroutine
slarscl2 (m, n, d, x, ldx)
SLARSCL2 performs reciprocal diagonal scaling on a matrix. subroutine
zlarscl2 (m, n, d, x, ldx)
ZLARSCL2 performs reciprocal diagonal scaling on a matrix.
CLARSCL2 performs reciprocal diagonal scaling on a matrix.
Purpose:
CLARSCL2 performs a reciprocal diagonal scaling on a matrix: x <-- inv(D) * x where the REAL diagonal matrix D is stored as a vector. Eventually to be replaced by BLAS_cge_diag_scale in the new BLAS standard.
Parameters
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 REAL array, length M Diagonal matrix D, stored as a vector of length M.
X
X is COMPLEX 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 California Berkeley
Univ. of Colorado Denver
NAG Ltd.
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 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 California Berkeley
Univ. of Colorado Denver
NAG Ltd.
SLARSCL2 performs reciprocal diagonal scaling on a matrix.
Purpose:
SLARSCL2 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_sge_diag_scale in the new BLAS standard.
Parameters
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 REAL array, length M Diagonal matrix D, stored as a vector of length M.
X
X is REAL 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 California Berkeley
Univ. of Colorado Denver
NAG Ltd.
ZLARSCL2 performs reciprocal diagonal scaling on a matrix.
Purpose:
ZLARSCL2 performs a reciprocal diagonal scaling on a matrix: x <-- inv(D) * x where the DOUBLE PRECISION diagonal matrix D is stored as a vector. Eventually to be replaced by BLAS_zge_diag_scale in the new BLAS standard.
Parameters
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, length M Diagonal matrix D, stored as a vector of length M.
X
X is COMPLEX*16 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 California Berkeley
Univ. of Colorado Denver
NAG Ltd.
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Fri Aug 9 2024 02:33:22 | Version 3.12.0 |