drscl.f

Section: LAPACK (3)
Updated: Tue Nov 14 2017
Page Index
 

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

Generated automatically by Doxygen for LAPACK from the source code.


 

Index

NAME
SYNOPSIS
Functions/Subroutines
Function/Subroutine Documentation
subroutine drscl (integer N, double precision SA, double precision, dimension( * ) SX, integer INCX)
Author
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