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From: dave@cs.arizona.edu (Dave P. Schaumann)
Newsgroups: comp.lang.c
Subject: Re: Log Library - How is it done in the library c
Message-ID: <1145@caslon.cs.arizona.edu>
Date: 12 Mar 91 20:35:24 GMT
References: <15438@smoke.brl.mil> <1991Mar12.014416.4289@m.cs.uiuc.edu> <1991Mar12.165943.11101@zoo.toronto.edu> <2063@gold.gvg.tek.com>
Organization: U of Arizona CS Dept, Tucson
Lines: 15

In article <2063@gold.gvg.tek.com> shaunc@gold.gvg.tek.com (Shaun Case) writes:
>Just as a point of minor interest, you can get the exponent of the log
>of a string representation of a positive integer by doing a strlen().
>(log base 10, of course.)
>
>Example:
>strlen("1") -1 ==   0   log == 0
>[...]
>Now, if we could only use strupr() to calculate sin and cos...
>:-)

Actually, if you're willing to tolerate the same range of error (+/- 1),
you can define sin(x) == cos(x) == 0.
-- 
Dave Schaumann | dave@cs.arizona.edu | Short .sig's rule!