Whether you're trying to calculate your way into a woman's heart, or you're just a high school Calculus teacher looking for something to make you more fashionable than the chemistry teacher so you can finally catch the attention of that muy caliente Spanish teacher, this Mathematics Equations tie could give you that extra little charisma you're working for (and bonus, this tie shows your work). Also, if you're the kind of student who can get away with wearing a tie, it might work as a cheat sheet, or your best option at impressing that cute girl who tries to cheat off you, but can't quite read your handwriting from that distance. There's probably other reasons, too. I mean, men don't wear ties solely to pick up women (or men). I mean, I can't think of any other reasons, but that's probably my deficiency, not anything to do with the tie.