dan mackinnon projects

5queens image

Chess Domination and Independence

Mathematical Chess Puzzles

A page to try out solutions to classic chess problems, like the 8 queens puzzle.

Chessdom page Source

pentagon tiling image


A recreational mathematics blog

A place to share some math that I do for fun.

division image

Polynomial grid division

Dividing polynomials in a table

Generates examples of polynomial division using the grid method. Information about the method can be found on various posts linked to this one

Polygrid Page Blog post Source

fractal image


Some Mandelbrot and Julia set fractals
Cplxfrac Page Blog post Source

kixote image

Knight Tours

Interactive knight's and king's tour puzzles

Generated puzzles based on knight tours, or kixote, can be found here; generated hidato puzzles, based on kings tours, can be found here. The knightTourist page lets you find your own tour while providing you with some clues for where to move.

Kixote Hidato Numbrix Blog post Source

scatterplot image

R pages

Some simple examples of solving problems using R.

Source (gists)

quiltic image


Celtic plait motifs

Play with a set of tiles that together make plaits and knots.

Quiltic Page Blog post Source

sandpile picture

Some Cellular Automata

Life, but not as we know it