Graphing in Polar Coordinates

Graphing in polar coordinates is still a bit clunky in GeoGebra 4, so this sketch does a bit of the clunky work for the student by parameterizing the polar equation. Enter the function of the radius in terms of theta as r(t), and then manually progress t or press play to see the graph. See the many types of polar curves to explore at Wolfram Mathworld: (shortened) or
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