Having a TI-82 in calculus class is sick. Try an 85, or better yet, a 92. ------ STL137@aol.com ===> Website: http://members.aol.com/stl137/ PGP keys: ~~~pgp.html Quotes: ~~~quotes.html "I have sworn upon the altar of God eternal hostility against every form of tyranny over the mind of man" - Thomas Jefferson