Re: RESTRICTING DOMAINS

Subject: Re: RESTRICTING DOMAINS
From: barrym <barrym@NEOSOFT.COM>
Date: Sat, 21 Sep 1996 20:51:57 -0500
In-Reply-To: <Pine.LNX.3.93.960922005717.1688A-100000@batman.ee.ryerson.ca>

On Sun, 22 Sep 1996, Shawn D'Alimonte wrote:

> On Sat, 21 Sep 1996, John Logan wrote:
>
> > at least on the 85 inequalities can be combined using 'and' and 'or'.
> > The commands are not case sensitive.  Here is an eample for the above
> > equation:
> > y2=x^3*(x>0 and x<1)
>
> I am aware of hat, but I find it easier to combine them by multiplication.
> Since TRUE evaluates to 1 and FLASE to 0, multiplying comparisions is the
> same as using the and operation.  I beleive it also calculates faster than
> using he and operator.

I would test that carefully.  It might be that the 85 can spot
the trivial multiplication and not actually multiply, but if
it does actually multiply, multiplication is a LOT slower for
the cpu to do than and.  A few hundred times slower at least.

Barry

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