I have been using Algebrator and it has helped a great deal. I find it very helpful as a check against my problems. I solve them manually and then use it to check my work.
Stephanie Cummings, AZ

I just bought your program. I purchased the Personal Algebra Tutor (PAT) and I am really disappointed with it. Reasons: 1) if the computer crashes, you have to email them for a password (where I live, on a mountain with high winds, we get alot of power outages) as well as lightning strikes; 2) they said that the problems could be typed in and a solution would be provided. Half of the math problems I have had, do not work with their program; 3) they say to email them the questions and they will provide the solutions, but it can take up to 24 hours, and sometimes that is too long to wait for an answer. To show proof of my confirmed purchase of the PAT program, I have attached a copy of the receipt that they sent to me.
Teron, PA

Thank to be very quick to answer my question, I will recommend you all over the world.
Barbara, LA