Calculator v3.0

I prefer the way it is, as I can retain calculations after returning from getting figures in another app.

OK, I'll add option. So you can clear or not clear results.

When you first open the calculator the keyboard does not work right away. You always need to click anywhere on the calculator to activate it. Is there anyway you can fix this so when the calculator is opened it is automatically activated so the numbers on the keyboard work?

I'll try to make something with this. There are some limitation in TLB. I have to make the Calculator plugin as "plugin with menu"

Anyway, the using hotkey can solve this problem right now