3 ms·

Is your implementation correct? I get strange values. Q_rsqrt(16) = 0.24957678739619552 I'm not sure if I'm just not doing something correctly. Even if

Is your implementation correct? I get strange values. Q_rsqrt(16) = 0.24957678739619552 I'm not sure if I'm just not doing something correctly. Even if I go to a smaller number I get: Q_rsqrt(0.125) = 2.828426859705843 Which is vastly off (10x ish)

Koshkin 10y ago
More accurate numbers are 0.25 and 2.8284271247461900976033774484194 respectively.
echeese 10y ago
You can compare it to the native implementation here. Looks okay, if a little inaccurate to me: http://codepen.io/anon/pen/KavzKK http://codepen.io/anon/pen/KavzKK