3 ms·

Also related: Quake III fast inverse square root[1]. [1]: https://github.com/id-Software/Quake-III-Arena/blob/master/code/game/q_math.c#L552 https://github.com

Also related: Quake III fast inverse square root[1]. [1]: https://github.com/id-Software/Quake-III-Arena/blob/master/code/game/q_math.c#L552 https://github.com/id-Software/Quake-III-Arena/blob/master/c...

mkl 4y ago
It's way older than Quake III: https://en.wikipedia.org/wiki/Fast_inverse_square_root https://en.wikipedia.org/wiki/Fast_inverse_square_root Many past discussions on HN: https://hn.algolia.com/?q=inverse+square+root https://hn.algolia.com/?q=inverse+square+root