The current promotion at cafepress involves math-oriented t-shirts for “Pi Day”, March 14th (or 3.14, get it? Yeah, lame). Also, it might have been a good idea to start the promotion more than 3 days before, since most math whizzes understand that rush shipping costs too much. But still, some of the math-related shirt messages (most of which contain more words than numbers) are worth repeating. (Which also saves me from writing my own jokes for the occasion)

So, let’s all dig into the pi, shall we?

The following are estimated numbers based on surveying the first 300 of over 4000 designs in the category:

“Mathlete” designs: 88

“cutie ?” (or QT?): 67

Other variations on substituting ? for pie (including Pumpkin, Cow and …in the sky): 133

“What part of [complex equation] don’t you understand? 59

“NOT i, keep it real'” and “i squared, keeping it real” variations: 57

Designs based on the “Find X. Here it is!” gag: 49

“There are 10 kinds of people in the world, those who understand binary, and those who don’t” 44

Math Teacher by day, X by night (X= something cool like Rock Star or Spy) 42

Variations on “?-rate”: 38 (because ? arrrrr squared, of course!)

Good concepts I only saw once or twice…

Mathematics is for intelegant people [yes, that’s the way they spelled it]

I left my math teacher costume at home.

This is my math teacher costume

Evil Mutant Math Teacher (I dig self-effacing humor but I’m still surprised this is on the BEST SELLER list)

I do my own math stunts.

Math Teachers Do NOT Do Decaf

7/5 of all people do not understand fractions!

Calculus: The agony and dx/dt

the airspeed velocity of an unladen swallow: [complex equation]

Magnum ?

? in the sky

?mp

I’ve counted to infinity.

Calculus: Yes, it is rocket science.

Alcohol and calculus don’t mix: Never drink and derive.

Designated deriver

How’s my Deriving? Call 1-800-I-DO-MATH

Math Problems? Call 1-800-[complex equation]

(pictures of) Weapons of Math Instruction

Life without geometry is pointless

I like angles… to a degree

Square root of -666: Imaginary Number of the Beast

i says ‘be rational’, ? says ‘get real!

I Am The Denominator

INTEGRALS my antiderivative (in the style of “my anti-drug”)

Mathematical puns are the first sine of madness

I propose we leave math to the machines… and go play outside.

HO^{3}[a Christmas design]

For a good prime, call 555-793-7319

DeciMall: where mathematicians go shopping

And some IMO miscategorized (but still entertaining) messages:

X percent of all statistics are made up on the spot. [X being a random percentage among several shirts]

So what is the speed of dark?

I’m an~~engeneer~~~~enginere~~~~engenere~~I’m good with math

Wanted Dead and Alive: Schrödinger’s Cat

If you’re not part of the solution, you’re part of the particulate

May the m X a be with you

What if I really DO know it all?

Studies show that stating “studies show” will increase your odds of winning an argument

Civil Engineers build targets, Mechanical Engineers blow them up

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