Hi, If you're looking for a good beginners book for number theory that is focused on using computer programs (BASIC) then check out: Exploring Number Theory w/ Microcomputers Donald D. Spencer ISBN 0-89218-113-3 (note I couldn't find w/ this, had to use the title) $24.95 Camelot Publishing PO Box 1357 Ormond Beach, FL 32175 904-672-5672 I ordered mine through Bookstop and should take 4-8 weeks for delivery. There is a teachers manual available as well (I suspect it is answers only) for $15.95 ____________________________________________________________________ | | | The most powerful passion in life is not love or hate, | | but the desire to edit somebody elses words. | | | | Sign in Ed Barsis' office | | | | _____ The Armadillo Group | | ,::////;::-. Austin, Tx. USA | | /:'///// ``::>/|/ http://www.ssz.com/ | | .', |||| `/( e\ | | -====~~mm-'`-```-mm --'- Jim Choate | | ravage@ssz.com | | 512-451-7087 | |____________________________________________________________________|