Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §9.1 Polar Coordinates, #32 · Calculus · Parametric & polar

If you have a graphics package for parametric curves, graph some _hypocycloids_

If you have a graphics package for parametric curves, graph some _hypocycloids_. The equations are $x = (1 - b) cos t + b cos (1 - \frac{1}{b}) t / b, y = (1 - b) sin t - b sin (1 - \frac{1}{b}) t / b$ . The figure shows $b = \frac{3}{10}$ and part of $b = .31831$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §9.1 Polar Coordinates, #32

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