TheCloud/v
1
0
Fork 0
mirror of https://github.com/vlang/v.git synced 2025-09-07 14:20:10 -04:00
Code Issues Packages Projects Releases Wiki Activity

math: document q_rsqrt

Browse Source
This commit is contained in:
Alexander Medvednikov 2024-09-24 04:33:46 +03:00
parent c72dde20d0
commit 03e0b9e646
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
vlib/math/q_rsqrt.v
View File

@ -1,5 +1,11 @@
module math module math
// q_sqrt computes an approximation of the inverse square root (1 / √x) using a fast
// inverse square root algorithm. This method is often used in applications
// where performance is crucial, such as in computer graphics or physics
// simulations.
// (This algorithm is inspired by the famous "fast inverse square root" code
// used in the Quake III Arena game engine.)
@[inline] @[inline]
pub fn q_rsqrt(x f64) f64 { pub fn q_rsqrt(x f64) f64 {
x_half := 0.5 * x x_half := 0.5 * x