<HTML> <HEAD> <TITLE>GIFgraph.pm - example 3-1</TITLE> </HEAD> <BODY BGCOLOR="#FFFFFF" TEXT="#000000"> <H1 align="center">GIFgraph.pm - example 3-1</H1> <hr> <p align="center"> <img src="sample31.gif"> <p align="center"> <p align="center"><a href="sample31.pl">The code.</a></p> <hr> <h5>NOTE</h5> Notice that the green set doesn't have an entry for the 7th point. </BODY> </HTML>