But the default calculator literally only adds, subtracts, multiplies, and divides. I recently discovered that there is a square root function, but you have to figure out how to get to it. So I'm hoping I can at least get trig functions and pows to work efficiently. Also, for the RPN heads like me, just adding an RPN interface would make it much more usable.

At any rate, it might just be something for me. If I ever wanted to put anything in the app catalog I'd have to go back and look through the IP contracts I signed when I started working at my current university. There are some restrictions on "commercial software." I think if I do all the work in my free time on my home computers it'd be fine, but it might all be a headache I'd rather just avoid.