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A comment on Revisiting the Fast Inverse Square Root – Is It Still Useful?. Parent comment

Re:Revisiting the Fast Inverse Square Root – Is It Still Use... by adgjlsfhk1 on Friday April 21, 2023 @12:58AM (#35649956)
the point of 7 bits is that you can double the digits with newton if you need, so a bad but fast version lets you choose how accurate you need it.
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