MediumCurves in space

Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §12.4 Polar Coordinates and Planetary Motion, #24 · Multivariable Calculus · Curves in space

Convert …, or …, into the … equation of an ellipse

Convert $1/ r = C - D cos θ$ , or $1 = C r - D x$ , into the $x y$ equation of an ellipse.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §12.4 Polar Coordinates and Planetary Motion, #24

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