Add Yahoo as a preferred source to see more of our stories on Google. As if math wasn't confusing enough, we have Pi to contend with. An irrational number that has no end. It sounds like an easy ...

My fellow nerds and foodies, this one is for you. March 14 is officially National Pi Day, and if you aren't celebrating with bad puns and a slice of your favorite dessert (French silk, looking at you!

I have a nearly pi-like (i.e., endless) supply of Pi Day memes. I'll control myself and only post one.