RPN Dominator Calculator

Reverse Polish Notation Calculator
A simple RPN Calculator with an intractable stack, undo, and basic calculation buttons.

Features:
- Scrollable stack
- Drag and drop items in the stack
- Swipe to delete items from the stack
- Swap and Copy elements in the stack
- Undo
- Conversion for Radians and Degrees
- Perform common and basic calculations

Tips:
- Pressing Enter while the input is empty will duplicate the value in row 1
- Long press Undo to delete the Stack, Undo History, and Memory
- Swap/Copy
- Tap a value in the stack to select it.
- Select a second value to swap with or select input when it is empty to copy it.
- The first selection may also be copied to memory by pressing M-in after the first
selection is made.