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From: rsc503@csc.anu.oz
Newsgroups: comp.databases
Subject: Trig functions in dBase/Clipper
Message-ID: <2597.26b96f8c@csc.anu.oz>
Date: 3 Aug 90 12:35:24 GMT
Organization: Computer Services, Australian National University
Lines: 23




A friend of mine is writing some software in dBase III to be compiled with
Clipper.  He requires some trig functions (sin and arccos) which dBase
apparently doesn't offer, and he thinks the easiest way to do it is to write 
trivial C functions which Clipper can call.

As I have zero experience with C, I was wondering whether someone could
email to me the source code and object files for two functions, called say
sine(x) and invcos(x) which would not return a value but would pass the
sin and arccos of x, ie the value of x on return would be the result.
Some advice as to whether this is the best way to solve the problem would
also be appreciated.

Many thanks...


Ian Gentle					igentle@rsc0.anu.oz.au
Research School of Chemistry
Australian National University
Canberra  ACT 2601
Australia