Constant Magnets

Symbol of the mathematical constant pi.

Named after mathematician Leonhard Euler, Euler's identity is known as a prime example of mathematical beauty because it links the four most fundamental constants in mathematics: the circle constant pi, Euler's number e, the imaginary unit i, as well as the numbers 1 and 0. It also features three basic arithmetic operations: addition, multiplication and exponentiation. This Japanese-language design features the famous equation along with its Japanese name ("oiraa no toushiki"). Wear this design to show your appreciation for the beauty of mathematics or buy it as a gift for your favorite math otaku and Japan enthusiast because nothing is more beautiful than math.

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