SRC/drscl.f(3)

NAME
SRC/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.

Definition at line 83 of file drscl.f.

Author

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