(Version of 26 October 1999) (Note: I have recompiled and
repackaged xFunctions on 6 December 2012 for better
compatibility with newer versions of Java. However, the code is
unmodified and is quite old, being written for Java 1.0.) The
xFunctions applet is meant as an educational tool for exploring
several topics in calculus and pre-calculus mathematics. It can
also be used to have fun playing around with mathematical
functions. The applet includes most of the features of my older,
popular xFunctions program for Macintosh, which is no longer
available since it doesn't work on modern Macs. xFunctions is
designed to be easy to use. It can, for example, be used in a
course with very little class time required to explain how to
use it. In addition to basic graphing, xFunctions lets you do
animated graphs, parametric curves, derivatives, Riemann sums,
integral curves, and 3D graphs. Instructions and more info can
be found later on this page! There are two versions of the
applet. In one version, xFunctions appears