Floating-Point Numbers: Why 0.1 + 0.2 Is Inexact
Computerphile · Explainer · YouTube title: Floating Point Numbers - Computerphile
Why it's here
Recommended as a simple, fun explanation of why floating point gives odd errors like 0.1 + 0.2.
What it covers
Tom Scott explains for Computerphile how floating point numbers work, why moving the binary point is fast, and why it handles money badly.