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fast inverse square root 添加释义

网络释义英英释义

  平方根倒数速算法

不,单就求平方根倒数来说,还有一个神奇的近似算法,叫做 Fast Inverse Square Root平方根倒数速算法)。

基于2008个网页-相关网页

Fast inverse square root

  • abstract: Fast inverse square root (sometimes referred to as Fast InvSqrt() or by the hexadecimal constant 0x5f3759df) is a method of calculating x−½, the reciprocal (or multiplicative inverse) of a square root for a 32-bit floating point number in IEEE 754 floating point format. The algorithm was probably developed at Silicon Graphics in the early 1990s, and an implementation appeared in 1999 in the Quake III Arena source code, but the method did not appear on public forums such as Usenet until 2002 or 2003.

以上来源于: WordNet

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