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slascl2.f(3) LAPACK slascl2.f(3)

NAME

slascl2.f -

SYNOPSIS

Functions/Subroutines


subroutine slascl2 (M, N, D, X, LDX)
 
SLASCL2 performs diagonal scaling on a vector.

Function/Subroutine Documentation

subroutine slascl2 (integerM, integerN, real, dimension( * )D, real, dimension( ldx, * )X, integerLDX)

SLASCL2 performs diagonal scaling on a vector.
Purpose:
 SLASCL2 performs a diagonal scaling on a vector:
   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 D and 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 vector X to be scaled by D.
     On exit, the scaled vector.
LDX
          LDX is INTEGER
     The leading dimension of the vector X. LDX >= 0.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
September 2012
Definition at line 91 of file slascl2.f.

Author

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