Hats

Description: The eight perfect shuffles design suitable for darker apparel.

Description: A diagram depicting the process of eight perfect riffle shuffles on a deck of 52 cards.

Description: A classic visual proof of the Pythagorean theorem suitable for dark shirts.

Description: A famous spiral construction using the pythagorean theorem to draw the square root of any value.

Description: A Classic visual proof showing that the sum of the first n positive integers is n times n+1 divided by 2.

Description: A joke about a cow who can't do a calculation.

Description: A Tatami Diagram - Used in many visual proofs including the AM-GM inequality.

Description: A visual proof showing that the area of the regular dodecagon in a unit circle is 3.

Description: A classic visual proof of the Pythagorean theorem from Zhoubi Suanjing.

Description: A visual proof that the sum of powers of 1/4 is equal to 1/3.