Thanks for your help, but unfortunately when I get to the final exam for this class I don't have access to a computer and the final is not a multiple choice. They study guides are the only books for this class that have multiple choice problems. I have to be able to write how I arrived at the solution whether I used a calculator or not. The school wants to make sure we understand the basic theory. But I will keep this in mind when I get to one that has multiple choice answers.
Thanks for your help.