Thursday, 4 December, 2003

Here we present a variant of the limit set, forbiding all combinations of inversions that are expansions.
Here we use driven IFS to map which combinations of inversions result in expansions when the inverting cirlces overlap.

First we survey Escher's tilings and other works motivated by his desire to encomapss the infinite in a finite range.
A tiling or tessellation is a division of the plane into congruent, nonovelapping figures. We review some simple plane tilings.
A simple way to make more complicated tiles is midpoint displacement.
How can we tell a fractal tiling from a Euclidean tiling? Here we review the relevant property of fractals.
Fractals can be distinguished from Euclidean tiles by using the area-perimeter relationship.
With midpoint displacement we can build some simple fractal tiles.
Here is one simple method for producing simple fractal tilings.
Here is another simple method for producing simple fractal tilings.
Here is a more mathematically demanding method of generating an infinite variety of fractal tiles.
Here is a practice final, here is another practice final.
Here are the answers for the seventh and eighth homeworks.

Course summary