Live and Let Pi features Pi Symbol as Agent 3.14 complete with white tux, bow tie and pistol. Great gift idea for Math Teacher, geek, nerd and Math Lovers of All Ages.

Happy Pi Day! This is a funny shirt that makes a perfect gift for any pie fan, math student, math teacher, pi day fan, student, teacher, son, daughter, bff, friend and more!

The Well Rounded Ultimate Pi Symbol in All of Its Glory. Great Gift Idea for Math Teachers, Geek, Nerds and Math Lovers of All Ages. Pi Day Should be Everyday!

Pi Another Day features Pi Symbol as Agent 3.14 complete with white tux, bow tie and pistol. Great Gift Idea for Math Teachers, Geek, Nerds and Math Lovers of All Ages.

Pi Man Vampire Bat featuring Pocket Protector, Pi Symbol Fangs and Nerd Glasses. Pi Symbol Design. Great Gift Idea for Math Teachers, Geek, Nerds and Math Lovers of All Ages.

Tags:
pi-man, pop-culture, bat, vampire-bat, pi-symbol

Pi Day. The number pi is a mathematical constant. Originally defined as the ratio of a circle's circumference to its diameter, it now has various equivalent definitions and appears in many formulas in all areas of mathematics and physics. Pi is commonly defined as the ratio of a circle's circumference C to its diameter d. The ratio C/d is constant, regardless of the circle's size. For example, if a circle has twice the diameter of another circle it will also have twice the circumference, preserving the ratio C/d.

The great Pi Day shirt is a perfect birthday gift for math geeks. Galaxy nebula with the saying, "It's my birthday. I"ll eat Pi if I want to." Get ready for Pi Day on March 14 by getting one of these amazingly geeky designs on any of our apparel or gift items!

Celebrate the Awesomeness that is Pi with this Cool Pi Day T-shirt Design by Mudge Studios. Pi Day is celebrated March 14th, but every math lover, geek, nerd, Math Teacher, mathlete knows that Pi Day should be everyday.

Like Apple Pie? or maybe Math and Science are your jam. This Pi Day world cloud shirt features Pi and 3.14 in the shape of an apple.
Celebrate Pi Day on March 14, 2018 with this shirt that features Pi and 3.14 in the shape of an apple. Get it! Apple Pie. Casual funny shirt for math and science lovers

Do you need a gift for a math lover in your family? This last digits of pi funny math tee is a perfect gift for birthdays, anniversaries, Christmas, Valentines, and Pi Day. The best corny joke gift idea for math geeks.

Funny Pi Polar Bear t-shirt featuring Polar Bear with Pi symbol sunglasses and an Einstein hairdo. Polar Bears are very intelligent and highly regarded as the Einsteins of the Bear Community. Cool Pi Day gear for math lovers with a sense of humor.