Pi is used by mathematicians to represent the ratio of a circle’s circumference to its diameter. It is a mathematical constant and an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers. Pi is approximately equal to 3.14159 and is commonly written this way, however, Pi’s decimal representation is  never ending. This shirt displays the symbol of Pi, π, using the number Pi to hundreds of decimal places. Pi, made out of Pi! Embrace your inner irrationality with the most popular of the irrational numbers. Perfect for mathematicians with a love for geeky t-shirts.

Please refer to the below sizing guide to find the best fit for you. Shirts tend to run large for women.