MediumCurves in space

Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §12.4 Polar Coordinates and Planetary Motion, #26 · Multivariable Calculus · Curves in space

Show that …, … lies on the ellipse

Show that $x = - c$ , $y = b^{2} / a$ lies on the ellipse $x^{2} / a^{2} + y^{2} / b^{2} = 1$ . Thus $y$ is the height 1/ $C$ above the sun in Figure 12.10. The distance from the sun to the center has $c^{2} = a^{2} - b^{2}$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §12.4 Polar Coordinates and Planetary Motion, #26

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