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Updated: May 9, 2025
Thereupon followed the epicycloids, curves which as the cycloid is generated by a point upon the circumference of a circle rolled along a straight line are generated by a similar point when the path of the circle becomes any curve whatever. Caustic curves, spirals without number, succeeded, of which but one shall claim our notice, the logarithmic spiral, first fully discussed by James Bernouilli.
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