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But what is the Fourier Transform? A visual introduction.

3Blue1Brown

But what is the Fourier Transform?  A visual introduction.

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

HN's default recommendation for understanding the Fourier transform intuitively; many say it was the explanation that made it click.

20 Hacker News mentions · 2018–2025

Topics

  • Information theory & signal processing
  • Recreational & visual math
  • Pure mathematics

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