You have permission to use these applets in a classroom setting or take screenshots
as long as the applets are unmodified. Modification or redistribution for non-commercial purposes
is allowed, as long as you credit me (Paul Falstad) and provide a link to my page
(the page you found the applet(s) on, or http://www.falstad.com/mathphysics.html). Contact
me for any other uses. The source code for each applet is generally available on that
applet's web page, but some of the applets use third-party source code that has restrictions.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.