Quake 3’s Fast Inverse Square Root Function

This post was written by Jake on January 28, 2008
Posted Under: Computer Science, Math
Note: This is not meant to be an authoritative mathematical description, and I’m pretty late to the party.. I was experimenting with the code, and am scratching an itch. For a far superior description, please look at Chris Lomont’s excellent analysis.
The Infamous [...]

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