Quake III & the reciprocal square root

In the C source code of the famous game “Quake III — Arena” you can find an incredibly efficient piece of code that seems totally insane and incomprehensible! It is the code for computing the…

Exploring Quake 3's Fast Inverse Square Root

REVEALED: Quake III's SECRET Algorithm!

Has anyone ever had a eureka moment like the fast inverse square

Behind the Performance of Quake 3 Engine: Fast Inverse Square Root

Fast Inverse Square Root — A Quake III Algorithm

Cool Code - Quake 3 Fast InvSqrt() - Particl Digital

Quake III & the reciprocal square root

Delta Thoughts - Quake III's Smartest Quasi-Square Root

Fast inverse square root - Wikipedia

The Fast Inverse Square Root. Imagine you're a new engineer in a