Here is another version I just created!
You can drag the blue arrow to change angle when the state is paused.

/htdocs/ntnujava/ejsuser/2/users/ntnu/fkh/sincos_pkg/sincos.propertiesFull screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
Download EJS jar file(727.4kB):double click downloaded file to run it. (10 times by 8 users) , Download EJS source (6 times by 4 users) View EJS source