slascl2.f(3)

slascl2.f3

Usage

Functions/Subroutines

subroutine slascl2 (m, n, d, x, ldx)
SLASCL2 performs diagonal scaling on a matrix.

Function/Subroutine Documentation

subroutine slascl2 (integer m, integer n, real, dimension( * ) d, real, dimension( ldx, * ) x, integer ldx)

SLASCL2 performs diagonal scaling on a matrix.

Purpose:

!>
!> SLASCL2 performs a diagonal scaling on a matrix:
!>   x <-- 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

!>          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 Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 89 of file slascl2.f.

Releases

4 releases since Debian 7 (Wheezy); the text changed 3 times.

  1. 7
  2. 8
  3. 9
  4. Arch

Author

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