[This is a back-issue of this site’s newsletter]
There are three quick items for today’s newsletter – the main one is that I’ve just uploaded yet another set of graph paper to print out. 
Triangular Graph Paper This time, it’s triangular graph paper – tesselations of equilateral triangles. Again, the tesselations come in various sizes, from 1 mm to 1 inch. Besides just showing a nice regular pattern, triangular graph paper is useful for graphing relationships between three different quantities whose sum is a constant – for a silly example, you could plot how much you spend on milk, butter and cheese, given a fixed “dairy” budget.
Speaking of graph paper, if you tried to download the Hexagonal Graph Paper I announced last time, the broken links on the page are now fixed! Come to the site and try again!
Last week, I also told you about a new iPhone game in the works. Well, the first version of Black Jelly Bean is now available for iPhone and iPad! More updates to follow…
Bye for now!
Michael Hartley