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From: pm0@springs.cis.ufl.edu (Patrick Martin)
Newsgroups: comp.sys.amiga
Subject: Re: Mathematical Equation Code....
Message-ID: <26067@uflorida.cis.ufl.EDU>
Date: 25 Dec 90 00:02:52 GMT
References: <39919@nigel.ee.udel.edu>
Sender: news@uflorida.cis.ufl.EDU
Organization: UF CIS Dept.
Lines: 21

In article <39919@nigel.ee.udel.edu> JK829055@pucal.bitnet (Jim Karczewski, Programmer -- TTR Development, Inc.) writes:
>
>        If anyone has any code in c that will give you a solution to a
>Problem like the following PLEASE Mail it to Me!!!
>
>                3(8*3(cos(4)*7-9)/43+3)+32)
>
>        I have some I was working on, But I have not had time to figure out
>what was wrong with it... Thanks!
>

Why not just take the Taylor's Series of the Cosine function then do the rest of
the function as you normally would?  Maybe I don't understand your problem fully
but if you are getting bad results from the trigonometric functions in the C
library then just use a Taylor's series to approximate the Cosine function.

cos(x) ~ 1 - (x^2/2!) + (x^5/5!) - (x^7/7!) + ...
 
Hope that's what you were looking for...
 
Pat