Use this applet from WaldoMaths to explore polar curves. Note that you can choose the equation type then use the sliders for zooming and varying the angle. The variables can be altered (A, B and C) to explore families of curves. Note that an excellent feature of this applet is that you can choose to show which values of r are negative.
Explore families of curves, vary a and b in acosbθ for example.
As with the polynomial and rational function gallery (see Graphs page) it is possible to dowmload all the animations.
Plot points in polar coordinates.
Note that polar curves can be plotted using the Desmos graphing calculator.
Explore polar curves using David Little’s applet. (Click image to play).
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