A simple applet for graphing with GeoGebra
Functions can be added to the graph with standard input.
More information on functions in GeoGebra.
GeoGebra is a GNUed software package for mathematics visualization. The
home for this application is http://www.geogebra.org.
This web page was created by Mike May, S.J., a faculty member in the Department of Mathematics and Computer Science at Saint Louis University.