Searched refs:kPi_2 (Results 1 – 1 of 1) sorted by relevance
25 static const float kPi_2 = 1.5625; // pi/2 ~= 2.0 * atan_approximation(1.0) in atan_approximation() local30 return kPi_2 - in_inverse / (1.0 + 0.28 * in_inverse * in_inverse); in atan_approximation()