Path: utzoo!mnetor!uunet!husc6!cmcl2!brl-adm!adm!V4039%TEMPLEVM.BITNET@CUNYVM.CUNY.EDU
From: V4039%TEMPLEVM.BITNET@CUNYVM.CUNY.EDU (Stan Horwitz)
Newsgroups: comp.lang.c
Subject: Re: parens honored
Message-ID: <11221@brl-adm.ARPA>
Date: 12 Jan 88 04:32:43 GMT
Sender: news@brl-adm.ARPA
Lines: 15


  The temp variables I am referring to are those needed to evaluate
the different quantities involved in the formula I mentioned.  Temps
for that case could be: TEMP1 = SUM(XY) / N and TEMP2 = SUM(X) * SUM(Y)
so that they can be included in the formula as:  SUMXY = TEMP1 - TEMP2 / N.
Of course I know the formula is not robust, it was not intended to be.
It was only meant as a short example to illustrate my point that in order
to avoid the use of temps, sometimes one can play a little mathemagic
(algebra) and write the formula in question to an order which C will
handle properly.  I did not provide the formula with the intention of
advocating it's use in numerical computations.


Stan Horwitz
V4039 at TEMPLEVM.BITNET