He's just misunderstood... and also the doctor.
Available in many styles and colors.
The original 'i 8 pi' t-shirts. Front: 'I ate pie' with math Back: 'and it was good' in english.
Available in two colors and styles.
A 4-leaf clover for Irish Mathematicians. Polar equations printed on the back.
Available in several styles and colors.
Just because you weren't on the tour, doesn't mean you can get the shirt.
Available in several styles and colors from printfection.
As You approach Me the distance between us approaches zero.
Available in several styles and colors.
Math themed christmas shirt. Have a merry X to the Nth-mas!
Available in several styles and colors.