This java applet is a simulation of waves in a circular membrane (like
a drum head), showing
its various vibrational modes. To get started, double-click on one
of the grid squares to select a mode (the fundamental mode is in the
upper left). You can select any mode, or you can click once on multiple
squares to combine modes.
Zip archive of this applet.
Version 1.6b, posted 2/3/14