Analytic geometry, for technical schools and colleges (1897)
Lambert, Preston Albert, 1862-1925 · New York, Macmillan · leaf 73
TIC GEOMETRY Art. Epicycloids and Hypocycloids If a circle rolls along the circumference of a fixed circle, thecurve generated by a point fixed inthe circumference of the rollingcircle is called an epicycloid if thecircle rolls along the outside, anhypocycloid if the circle rolls alongthe inside of… … 180°-: Hence x = (R + r)cos 0
Geometry, Analytic
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