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 (integerN, double precisionSA, double precision, dimension( * )SX, integerINCX)

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:
    September 2012

Definition at line 85 of file drscl.f.

Author

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