table of contents
| drscl.f(3) | LAPACK | drscl.f(3) |
NAME¶
drscl.f
SYNOPSIS¶
Functions/Subroutines¶
subroutine drscl (N, SA, SX, INCX)
DRSCL multiplies a vector by the reciprocal of a real scalar.
Function/Subroutine Documentation¶
subroutine drscl (integer N, double precision SA, double precision, dimension( * ) SX, integer INCX)¶
DRSCL multiplies a vector by the reciprocal of a real scalar.
Purpose:
DRSCL multiplies an n-element real vector x by the real scalar 1/a.
This is done without overflow or underflow as long as
the final result x/a does not overflow or underflow.
Parameters:
N
N is INTEGER
The number of components of the vector x.
SA
SA is DOUBLE PRECISION
The scalar a which is used to divide each component of x.
SA must be >= 0, or the subroutine will divide by zero.
SX
SX is DOUBLE PRECISION array, dimension
(1+(N-1)*abs(INCX))
The n-element vector x.
INCX
INCX is INTEGER
The increment between successive values of the vector SX.
> 0: SX(1) = X(1) and SX(1+(i-1)*INCX) = x(i), 1< i<= n
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2017
Definition at line 86 of file drscl.f.
Author¶
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| Tue Nov 14 2017 | Version 3.8.0 |