en.wikipedia.org 引用 经典 文章
Fast inverse square root - Wikipedia
快速平方根倒数算法用魔术常数加一次牛顿迭代估算 1/√x,因 Quake III 的实装而闻名。
资源信息
- 域名
- en.wikipedia.org
- 内容类型
- 文章(article)
- 主题
- 立场
- 引用(reference)
- 提及
- 3 次提及,3 位提及者
- 合集
- 经典(classic)
- 提及年份
- 2022
- 综合推荐分
- 5.8
推荐理由
Contrasts the seed formula with the legendary fast inverse square root as a different kind of hack.
HN 评论原话
“I'm pretty sure this isn't the same kind of thing as Carmack's (edit: not Carmack's) legendary inverse square root function [1], which has that 0x5F3759DF constant”
网页原文证据
The algorithm is best known for its implementation in the 1999 video game Quake III Arena.
网页抓取状态
成功(ok)