
Sure:
The Algorithm:
The idea is to consider points inside a square of side 2, and to distort those that lie inside a unit circle ( the sums of squares of the x and y coordinates are not greater than unity ). This distortion takes two forms, twist and bulge.
Firstly, each point inside the unit circle is put into the form (rCosA, rSinA) where A is the angle made by that point with the positive xacis, adn r
