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Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :

ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

GNU/Linux	CentOS 4.8	i386
	drscl(l)

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DRSCL

NAME
SYNOPSIS
PURPOSE
ARGUMENTS

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NAME

DRSCL - multiplie an n-element real vector x by the real scalar 1/a

SYNOPSIS

	SUBROUTINE DRSCL(		N, SA, SX, INCX )
	INTEGER		INCX, N
	DOUBLE		PRECISION SA
	DOUBLE		PRECISION SX( * )

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.

ARGUMENTS

N (input) INTEGER

The number of components of the vector x.

SA (input) 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 (input/output) DOUBLE PRECISION array, dimension

(1+(N-1)*abs(INCX)) The n-element vector x.

INCX (input) 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

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drscl(l)