Is trigonometry computationally expensive?

Posted by DMan on Stack Overflow See other posts from Stack Overflow or by DMan
Published on 2010-03-19T18:01:54Z Indexed on 2010/03/19 18:11 UTC
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c#

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.NET

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trigonometry

I read in an article somewhere that trig calculations are generally expensive. Is this true? And if so, that's why they use trig-lookup tables right?

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