Be Rational Get Real T-Shirt
More Info Behind The Design
The square root of a negative number doesn't exist, because when you multiply two numbers the same together, you will always get a positive number. Pi is an irrational number because it never ends, and there is no pattern to the digits, really. It can't be written as a fraction, in short.
T-Shirts & Apparel - Be Rational Get Real T-Shirt
Material: T-Shirts, Tank Tops, and Long Sleeve T-Shirts are 100% Cotton. Heather Grey is 90% Poly / 10% cotton. Purple is 50% Poly / 50% cotton. Hoodies & Sweatshirts are 50% Poly / 50% cotton.