๐ Fourierdle โ Guess the Shape Drawn by a Fourier Series
Spinning circles are tracing a hidden object. Read the formula, watch the epicycles and guess the shape before the full Fourier series draws it.
Today's puzzle: #1 (October 13, 2026)
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Stuck? See today's hints ยท Fourierdle past answers
How to play
A closed curve can be rebuilt from spinning circles: z(t) = ฮฃ rยทe^{i(nt + ฯ)}. You start with the two biggest circles, the formula and the curve's range; every wrong guess doubles the circles. When the game ends, all of them draw the whole object.
- โฟ Series: Guess the object being drawn from its first Fourier circles. Each wrong guess doubles the circles.
Shapes from Font Awesome Free icons (fontawesome.com), CC BY 4.0, turned into Fourier series for this game.
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