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Mail Archives: djgpp/2001/03/03/18:21:44

Message-ID: <3AA132DE.E46D023C@acm.org>
From: Eric Sosman <esosman AT acm DOT org>
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Subject: Re: trig function?? loopings
References: <Fqeo6.142$nj5 DOT 49880 AT sapphire DOT mtt DOT net>
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Date: Sat, 03 Mar 2001 23:05:23 GMT
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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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