Quote Originally Posted by Katzenschleuder View Post
Aren't modern FPUs implementing trigonometric functions like sinus with internal lookup tables?
I have just measured this and there is no way that modern x87 FPUs compute this with taylor series because the results are simply delivered too fast for that.
The same counts for sqrt and so on, so I think it is very likely that modern x87 FPUs use internal lookup tables.