A screen capture from my new Graphics Calculator - A HP40gs. I also downloaded an emulator so I can run all the same calculations on the PC. This plot is done by setting the parametric equations to x1(t)=cos(t), y1(t)=sin(3*t), Just enter them and press plot! Link for more info http://www.hphomeview.com/ and http://en.wikipedia.org/wiki/Lissajous_curve http://en.wikipedia.org/wiki/Australian_Broadcasting_Corporation
All photographs are copyright of Barry S Moore, Sydney Australia