Syntax
======

(DAXPY n a x incx y incy)

Purpose
=======

Y <- A*X + Y

Arguments
=========

N (input) FIXNUM
Number of elements of X,Y to be operated on.

A (input) DOUBLE-FLOAT
X (input) (SIMPLE-ARRAY DOUBLE-FLOAT (*))
INCX (input) FIXNUM
Determines the position of the elements in X. Usually
INCX is 1. If INCX is bigger than 1 then the elements
considered in the operations are:

X(0),X(INCX), ... , X((N-1)*INCX)

Y (input/output) (SIMPLE-ARRAY DOUBLE-FLOAT (*))
INCY (input) FIXNUM
Determines the position of the elements in Y. Usually
INCY is 1. If INCY is bigger than 1 then the elements
considered in the operations are:

Y(0),Y(INCY), ... , Y((N-1)*INCY)