QuoteOriginally posted by: jaimanPhil 23,thanks for the help. Do you know of anywhere that has a free trial version of mathematica ?thanksAs far as I remember, Wolfram Research Inc gives the teachers of calculus classes a free-trial (but you still have to buy it). If you are associated with a university, more than likely your school has purchased Mathematica in the form of annual fee. If so, contact your school computing office and inquire after that. Another possibility, get a pirate version...