Did I mention I'm 12? :-D
I actually am 12. I have been going through Sam's teach yourself Perl in 24 hours, and instead of going through the code presented in the book, I look at what it teaches me and use it to make stuff that I will actually use, hence making an Ohm's law calculator.
Anyways, thanks for the input! I actually don't know regexes all that well, which I know is a shame, considering regexes are one of the most powerful things about Perl, and in many ways the reason why Perl was made in the first place! I guess I should really go through regexes more. Thanks for the input, again.