17aug12
So this was pretty good effort, but incomplete, of implementing
the origianl Hippocket rtica in Turtle Python. 

For the reader of this file who is unfamiliar with the project:
The Hippocket programs were originally written in Commodore C64
BASIC ca 1990 and the C-64 2D graphics system. It consists of 
suite of discrete and discretized continuous 2D dynamical systems
which are documented in the eponymous .pdf lessons, elsewhere.

Over the intervening 20 years there have been many proposed 
ports of this collection of edifying programs to other languages
and graphics systems. The current one is for Python 2.x with
with a Tk-based implemenation of turtle-graphics by "anonymous".
(Haven't found the author yet.)

There are two session journals, one with annotations so far.
TOC:
readme   this document
dirturtle  journal 
turtledoc  journal
fibonacci/
circle/
sinewheel/
tkinter/
julia/
lorenz/