Well, I don't have a Ti-89, but your site seems usefull. If I had a 89, I'd like if you put some kind of way to download the tutorials, cause I cannot be connected too long. Greetings, __ __ | \/ | | \ / | __ _ _ __ ___ | |\/| |/ _` | '__/ __| | | | | (_| | | | (__ |_| |_|\__,_|_| \___|