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Date: 28 Jul 93 04:03:34 GMT
From: waikato.ac.nz!canterbury.ac.nz!news!otago.ac.nz!simon@decwrl.dec.com  (Th
e Arch-Deviant)
Subject: Re: ADA arithmetic
Message-ID: <1993Jul28.170334.1@otago.ac.nz>
List-Id: <comp.lang.ada>

In article <gmacmanus.2.743824190@gandalf.otago.ac.nz>, gmacmanus@gandalf.otago
.ac.nz (Greg MacManus) writes:
> How do you implement the numbers then?
> 
> 	- Just curious.

Easy - treat them as variable-length arrays (ie in a record with a default
discriminant) of 0..9 then treat each term as a coefficient in an polynomial
evaluated at x=10. As Paul observes, the literature is bulging with nifty
ways for performing operations on polynomials, and since we don't have to
generate keys we can get away with defining only three operations - square
the number, halve it and test for a remainder, and MOD.

Simon Brady                     "I'd join the Movement,
University of Otago              If there was one I could believe in"
Dunedin, New Zealand                  - U2, 'Acrobat'