ARCOS (inverse cosine)

Is it possible to calculate inverse Cosine in PBP?

any help would be appreciated?

Hi,

Calculate, no ...

Use a retrieve table ( + linearizing ) YES ...

depends MUCH on the looked for values range.

But PBP doesn't include any "ARCCOS" function ...

Alain

Quote:

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Originally Posted by mjphillips1981

Is it possible to calculate inverse Cosine in PBP?

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Yes, you could use the ATAN function by using a cordic (http://www.picbasic.co.uk/forum/showthread.php?t=10528) include file and calculate for the equation:

http://www.picbasic.co.uk/forum/atta...1&d=1255016566 (IF http://www.picbasic.co.uk/forum/atta...1&d=1255016808 )

You would need to do some manipulation for the math in a PIC chip though.

-Walter