Affine Matrix Ball Construction

The current preliminary version of the program lives here (source).

You will need the Java Runtime Environment to run the jar file
Use arrows to get around the infinite matrix
Use SHIFT + arrows to move around the red grid
Desired permutation can be entered in lower part of window (make sure to press ENTER at the end)
Desired permutation size (n) can be entered in corresponding box (pressing ENTER gives a random permutation of this size)
Degree of spread in randomness controlled by remaining bottom box
Matrix Ball Construction is controlled by arrows with label "AMBC" in the top right corner, or keyboard
P, Q, and rho can be entered directly into boxes. Make sure to press ENTER after entering each of them.