RPN Calculator Widget 1.2

RPN Calculator Widget is a scientific calculator with RPN entry, base conversion, and bitwise arithmetic.
Convert decimals to fractions at the touch of a button. Now the widget has support for international users and improved numeric keypad support.
Main features:
- RPN Entry Once you get used to it, youll never want to go back to algebraic notation. Thats why Procyon IT has developed the first RPN calculator widget. If youve used RPN before, youll feel right at home. New to RPN? No problem! Check out our guide to RPN entry for a primer; youll be up to speed in no time.
- Base Conversion Quickly switch between decimal, hexadecimal, octal, and binary representations. Need to work in another base? No problem! Just enter the base you want on the stack, and then click base (inv+bin). If you really want, you can even work in bases greater than 36. (Have fun.)
- Decimal-to-fraction Conversion With a click of a button (Ůx/y) convert the top number on the stack to a fraction! (Click again to convert it back to a decimal, if you really want to for some reason.) Work in decimals or in fractions -- its up to you!
- Bitwise Arithmetic And, nand, or, nor, xor and xnor are built-in for your bit-juggling pleasure. RPN Calculator uses a 32-bit word size, a limitation of JavaScript.
- Hidden Keypad Never use the mouse on a calculator? Neither do we, so we took it out. Use the keypad to enter numbers and the four basic functions. Most other functions have key equivalents, too (see Keyboard Shortcuts, below).
- Clipboard Support Widgets are great, but when was the last time you played with a calculator for the fun of it? Fun as they are, calculators are a tool to get "real" work done. RPN Calculator supports copying, cutting, and pasting numbers to and from the clipboard so you can quickly get your data where you need it.

Enhancements
- Customizable buttons. You can now assign any function to any button. That leads us to...
- Programmability. Make up your own buttons! Just assign a sequence of commands as a buttons operator, and you can build your own macros.
- Bug: Backspace now completely takes out a number youre entering on the stack.