Faster normalXAngle --> faster sin,cos,tan

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Have a look at Polynomial Approximations to Sine and Cosine. This uses no memory and is even faster than the lookup table approach. Skilgannon uses this as far as I know.

Also have a look at Chebyshev Approximation (http://metamerist.com/cheby/example38.htm archive) which works pretty well for atan, asin and acos.

Xor (talk)04:17, 15 August 2018

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