Welcome
The information here represents a final semester
project submitted as part of an undergraduate course on theoretical
physics. It contains a computer program written using the FORTRAN
language to plot the phase space trajectory of the above dynamical
system. The program models a damped, driven oscillator using a second
order non-linear differential equation. The popularity of the study of
this system has been fuelled by the interest in fractals of which this
system is related. This link
Pend12.htm will take you to a screen shot of the computer program
that generates the images. It is a DOS program and very basic compared
to some the the more modern JAVA applications around. But you should
find it fun all the same! Click here to download a copy of the program
PEND12.EXE

About me
I have been a teacher for about 12 years (as of 2006)
and decided to put this site up when some of my A level Physics students
expressed an interest in chaos theory (originally in 1996). Some of the
maths is above A level standard but I hope you find it useful anyway.
All the best
Gerry Leo
