Is there a 'simple' way of approximate all these math functions? I'm interested in $\tanh$, $\cos$, $\sin$, $\arccos$ and much more :) Im searching for a way to implement these functions by my own (need it for fast calculation).
Do I need to learn one method (i.e., Taylor?) to do this ? Or is there a simple collection which I could take and program.
Could someone help me?