Roman Numerals

I like building Roman Numeral converters. I'm not sure why, it just always seems like a fun thing to do when I learn a new language. As a side effect, it lets me solve Problem 89 on Project Euler really fast, although not that elegantly!

If you too like brute-forcing every problem you can, here are as many versions of my ocdRoman library as I could find.

Interactive Pretty Internet Code Library Demonstration... Program?

It seems a tad lazy to post the code and not write a Javascript version. Put a number in a box and press a button.

Arabic:

Arabic to Roman

Roman:

Roman to Arabic