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| Message-ID: | <3AA132DE.E46D023C@acm.org> |
| From: | Eric Sosman <esosman AT acm DOT org> |
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| Newsgroups: | comp.os.msdos.djgpp |
| Subject: | Re: trig function?? loopings |
| References: | <Fqeo6.142$nj5 DOT 49880 AT sapphire DOT mtt DOT net> |
| Lines: | 17 |
| Date: | Sat, 03 Mar 2001 23:05:23 GMT |
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| X-Trace: | bgtnsc05-news.ops.worldnet.att.net 983660723 12.78.198.101 (Sat, 03 Mar 2001 23:05:23 GMT) |
| NNTP-Posting-Date: | Sat, 03 Mar 2001 23:05:23 GMT |
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| To: | djgpp AT delorie DOT com |
| DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
| Reply-To: | djgpp AT delorie DOT com |
Stewart wrote:
>
> I am trying to write a program that prompts the user for a value in degrees
> and outputs the sine, cosine and tangent of the value entered. This is what
> I did:
> [...]
> cosine = cos(degrees*180/M_PI);
> [...]
I don't know C++ and thus can't answer your primary question.
However, I *do* know a little bit of trigonometry, and can advise
you that the above line will give you the wrong answer for most
values of `degrees' ...
--
Eric Sosman
esosman AT acm DOT org
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