Really outstanding Any way you look at it, this is a great piece of work. It seems to be based around an equation solver model, which gives fantastic flexibility on how your problem is entered. IOW, you don't have to bother re-arranging your equation, the variable will be solved wherever it appears. The graphics provided are very good, too. I can't see how anyone would not find it useful. *By far* the best of this genre that I have seen so far.
Very helpful With this I don't need to buy a graphing calculator anymore.
Great app, it has replaced my bulky TI-89 completely.
Only getting better! An excellent calculator which just keeps getting better.... and better!!