Parametric Equations and Cartesian
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Parametric Equations (converting from parametric to Cartesian examples)
One application of parametric equations that is useful to learn is how to parameterize a circle. In order to parameterize a circle centered at the origin, oriented counter-clockwise, all we need to know is the radius. In order to understand how to parameterize a circle, it is necessary to understand parametric equations, and it can be useful to learn how to parameterize other figures, such as line segments.
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