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Fast Square Root Challenge

Name: Anonymous 2010-07-05 16:04

Design a fast square root function which computes double floating point numbers faster than SQRTSD(SSE2). Bonus for precision.

Name: Anonymous 2010-07-11 6:40

>>15
Unfortunately, this method has been patented in the USA on June 6, 2000 by Vladimir Yu Volkonsky and assigned to Sun Microsystems. On August 13, 2006, Yuriy Kaminskiy told me that the patent is likely invalid because the method was published well before the patent was even filed, such as in How to Optimize for the Pentium Processor by Agner Fog, dated November, 9, 1996. Yuriy also mentioned that this document was translated to Russian in 1997, which Vladimir could have read. Moreover, the Internet Archive also has an old link to it.

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