function2ddemo1.html

Jfreechart 源码例子 是和jfreechart development Guide文档相配套的

<b>Function2DDemo1</b>
<p>
This demo illustrates how to plot a mathematical function y = f(x) with 
JFreeChart.  The function is sampled to create a dataset which is then
plotted.  This isn't ideal - it would be preferable to have a renderer 
that can plot mathematical functions directly.