Need to make a Touhou Math game where Cirno is the EX boss. From all the art I see it seems that if she had a calculator to do the arithmetic, she would be as good as any Math or Physics PHD.

Maybe something like Typing of the Dead except with math?

Finally, the answer is 9.

looking at math in a different language makes me feel like i have ADD. just looking for characters that make faces...

Im having flashbacks to math class. lol

Monogamists make better Touhou players?

This means the best players would be virgins.

Well, that can't be right, because I stink at it.

Oh crap, it's precalculuc all over again!

I...ah...what? What the fuck?
Who is this blue fairy and what have they done with Cirno?

Formal logic? In my Touhou?

There's actually an error in the diagram. It claims that the yellow part is the union of A and B, when in fact it's only the symmetric difference. The union would be the yellow part plus the red part.

Ah, venn, I was somewhat startled looking at Cirno suddenly putting up something that seems to be a complicated math stuff. I can at least take this.

This hurts my brain...