MathBin	Archimedean Spiral in 2D	Member

Plots the Archimedean spiral (aka arithmetic spiral) using parametric equations. Named after Archimedes, it is the locus of points corresponding to the locations over time of a point moving away from a fixed point with a constant speed along a line that rotates with constant angular velocity. Parameter a turns the spiral, b controls the distance between successive turnings, while k zooms in/out on the number of turns. The parametric equations are [a t cos(t), a t sin(t)] if b is zero, otherwise [a t cos(t), b t sin(t)].