A spiral is a curve that gets farther away from a central point as the angle is increased, thus "wrapping around" itself. The simplest example is Archimedes' spiral, whose radial distance increases linearly with angle. A number of named cases are illustrated above and summarized in the following table. spiral radial formula Archimedean spiral r=atheta^(1/n) Archimedes' spiral r=atheta atom spiral r=theta/(theta-a) circle involute Cornu spiral Cotes' spiral epispiral...
