# Mathematical Modeling

### Diffusion at the Microscopic Level

This MATLAB GUI simulates the random motion of *M* non-interacting particles on a grid. Each particle can only go up, down, left or right, with equal probability. All of the particles start their random walk from the origin, at the center of the box.

### Sea Shells

This MATLAB GUI plots a variety of sea shells defined as parametric surfaces. An explanation of the significance of the various parameters may be downloaded from this web site.