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Thumbnail for But what is the Fourier Transform?  A visual introduction.
HN score 18.5 · explainer

Information theory & signal processing

But what is the Fourier Transform? A visual introduction.

3Blue1Brown · Discussed on HN from 2018 to 2025

Topics and ideas

  • 01fourier transform
  • 023blue1brown
  • 03signal processing

3Blue1Brown's animated visual introduction to the Fourier Transform, showing how a signal breaks into frequency components.

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Source context

Documented HN source

First Fourier explanation that made sense, with amazing visuals from a great teacher.

“this was the first thing that ever really made sense to me”
Read the original HN comment

justjonathan · 2020-08 · 16 recommenders across 15 months

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