AS/A2 Pure 5 Pure 6

P4 Topic 7: Polar Coordinates
Other polar curves
Investigate polar curves with various equations. Pay close attention to any loops or symmetry or occurances of cusps. You may have to zoom out to get a better view. Click the left button to zoom in. Use Shift-click to zoom out. Click and hold down the right button to drag the graph.

Summary Curve with equations of the form r = 2Atan t sin t are called cissoids. Those with equations r = A(sec t - 2cos t) are called strophoids. Those with equations r = Asec t + B are called conchoids. Based on free Java applets from JavaMath