How does one become mathematical? These people have such a passion for math that they went beyond solving equations. The numbers are drawn into their skin for life. Tattooed on the neck, arms, legs, hands, fingers. What does x equal? How many Pythagorean theorems can you fit on a naked body? What is the square root of an elbow? Are you mathematical? Not as much as the people looking to answer these questions.
Source: Holy Taco