Thursday, December 07, 2006

News: Origin of Quake3's Fast InvSqrt()

From slashdot: http://slashdot.org/games/06/12/01/184205.shtml

Yet another source,
Chris Lomont 寫了一篇論文 (in PDF) 解析這段 code 的演算法~~~
(用的是 Newton’s Method牛頓法;比較重要的是後半段講到怎麼找出神奇的 0x5f3759df 的)。

Cant help but wondering ... today, how many kids at school are interested in Math/Science?

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