Plane and solid analytic geometry; an elementary textbook (1904)
Ashton, Charles Hamilton, 1866-1936 · New York, C. Scribner's Sons · leaf 220
107. The epicycloid.—The path described by a point … Fig. 106. 204 ANALYTIC GEOMETRY [Ch. XV, § 108 on the circumference of a circle which rolls on the out-side of a fixed circle is called an epicycloid. Let the student show that the equations of the epi-cycloid are a + bs x — (a-\-b~) cos (j> — b cosy = (« + b) sin <\> — b sin b a + b *…
Geometry, Analytic
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