#### trennonix

##### New Member

i've been thinking about this for a while now, and here it goes:

How does a calculator or any computer for that matter calculate trig functions

(lookup table; perhaps? and a linear approx in-between or Square function approx??)

My research lead to somehting called the Taylor series, but that gives an approximation.

Is there's a formula that can give a precise value like Sqrt(whatever)??