Kalid Azad personal blog
Quake's Fast Inverse Square Root
I'm no graphics expert, but appreciate why square roots are useful. The Pythagorean theorem computes distance between points, and dividing by distance helps…
- Points
- 107
- HN comments
- 63
- Submissions
- 3
- Cited by
- 15 commenters
Math & AlgorithmsSoftware Engineering2011
On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| Oct 15, 2011 | Quake's Fast Inverse Square Root by pjin | 107 | 24 |
| Jan 4, 2009 | Understanding Quake's Fast Inverse Square Root by ed | 88 | 23 |
| Mar 16, 2011 | Understanding Quake’s Fast Inverse Square Root by RiderOfGiraffes | 82 | 16 |
Cited in comments
Linked from 16 Hacker News comments by 15 different people, from Jun 2008 to Jul 2026.
Most recent:
