Exposing Floating Point – Bartosz Ciechanowski (2019) | Hacker News
TL;DR AI
2 min readKey summary
A Hacker News thread revisited Bartosz Ciechanowski’s 2019 explainer on floating-point numbers and how precision really works.
The discussion quoted NASA JPL’s note that 3.141592653589793 is enough for the most demanding navigation calculations.
The example shows that practical accuracy depends on the application, and extra digits of pi usually add no real benefit.
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