Ohhh that actually sounds pretty fun! For some reason I've recently done a bunch of reading and watched some videos on different base number-systems (how French probably started with base 12, and such). Really cool stuff.
Also computers, for easier use, have developed many different bases (that on the lowest level use base-two). You've probably heard of hexi-decimal and such too (uses 0-9, then A-F).
I learned about derivatives in my course. :/