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Fast inverse square root

Name: Anonymous 2013-06-24 6:09

0x5f3759df
Can't explain that!

Name: Cudder !MhMRSATORI!fR8duoqGZdD/iE5 2013-06-24 7:01

The algorithm generates reasonably accurate results using a unique first approximation for Newton's method, however it is much slower and less accurate than using the SSE instruction rsqrtss on x86 processors, and also released in 1999.
CISC FTW
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