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Normalization Approximation in 30 operations

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Also, for people who want to try to hack normalizations to be faster, this is a [b]very[/b] interesting read: [url="http://www.lomont.org/Software/..%5CMath/Papers/2003/InvSqrt.pdf"]Chris Lomont - Fast Inverse Square Root[/url].

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[quote name='clb' timestamp='1327168255' post='4904881']
Also, for people who want to try to hack normalizations to be faster, this is a [b]very[/b] interesting read: [url="http://www.lomont.org/Software/..%5CMath/Papers/2003/InvSqrt.pdf"]Chris Lomont - Fast Inverse Square Root[/url].
[/quote]
As others have already mentioned in this thread, that algorithm is no longer practical on a modern architecture. But it remains as a mathematical curiously none the less.

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[quote name='clb' timestamp='1327168255' post='4904881']
Also, for people who want to try to hack normalizations to be faster, this is a [b]very[/b] interesting read: [url="http://www.lomont.org/Software/..%5CMath/Papers/2003/InvSqrt.pdf"]Chris Lomont - Fast Inverse Square Root[/url].
[/quote]

Maybe a better read: [url="http://assemblyrequired.crashworks.org/2009/10/16/timing-square-root/"]http://assemblyrequi...ng-square-root/[/url] and http://assemblyrequired.crashworks.org/2009/10/20/square-roots-in-vivo-normalizing-vectors/

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