We are going to be working
with a program I call PiScript,
which is largely a Python interface to PostScript.
PostScript is itself the programming language used by printers;
Python is a programming language that was developed a bit more than 15 years ago, and
it has recently become reasonably popular.
I first developed PiScript as drawing tool
around 3 years ago, and it has grown since. I use it myself
almost exclusivley to produce graphics in mathematics.
This year at the BMS, a fair part of the code is not mine,
but was written by David Maxwell, now in the mathematics department of the University
The principal feature of PiScript is how it allows
TEX to be placed in figures.
There is a
home page for PiScript,
but it is not up-to-date. That shouldn't matter, because: