AS/A2 Pure 5 Pure 6

P4 Topic 7: Polar Coordinates
Spirals
Investigate polar spirals with various equations. Experiment with different ranges of the angle t. 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 Some curves have special names. r = At Archimedean spirals r² =At Fermat's spirals r = A/t hyperbolic or reciprocal spirals r² =A/t lituus spirals r = Aetcot a equiangular spirals Based on free Java applets from JavaMath