Re: [Mspgcc-users] who knows the best atan() approximation?

[Garst R. Reese]

Dmitry wrote:
> 
> Fellows,
> who knows the best atan() approx for argument within [0,1[ (return angles from
> 0 to 45 degrees)?
How much error can you tolerate?

x / (1 + .28*x*x) |e(x)|  <= 5e-3

Garst