This time we are graphing r = 0.2 θ in polar coordinates.

Drag the blue dot (slowly) left and right to change the angle θ and observe the resulting changes in the value of r.

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Hint: Let go of the blue dot to see a smooth curve at any time. You can trace out positive or negative angles.

Note the value of r is always `0.2` times the value of θ (of course, we are in radians).

Here's an image in case you can't see the graph above.


Graph of r = 2.5, a limacon.