Hypotrochoid
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What links here
Epitrochoid
Spirograph
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Roulette (curve)
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NSU Ro 80
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Epicycloid
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Limaçon
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Hypocycloid
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Penning trap
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List of curves
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IC 418
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Epicyclic gearing
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List of mathematical shapes
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Deferent and epicycle
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Timeline of cosmological theories
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Cycloid
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Wankel engine
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