Trigonometric mathplets

2015 update

The Internet has evolved since the year 2000. These applets have not.
It's becoming more and more difficult to run java applets (due to security reasons as well as a lacking support for java plug-ins in some browsers (Chrome)). I have therefore recompiled these activities into one single stand-alone java application that you can download and run on your computer.


If you're on a Mac, don't forget to hold the ctrl-key down while you click the file to be able to run it.
If you use a Linux machine, don't forget to set the executable rights.

Other mathematical resources on this site:


Get familiar with the fundamental trigonometry of a triangle.



Trigonometric functions

Go on and investigate the trigonometric functions sine, cosine and tangent.

Trigonometric functions - Test your skills


Fourier series

Advance to the Fourier series and see what happens when you add several sine waves.

Fourier series


Find out more about "Mathplets 2000" at the Virtual School of the European Schoolnet

Created by Magnus Karlsson.

Website: Email: 17 february 2000