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Hats

Eight Perfect Shuffles Dark Hat

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

Eight Perfect Shuffles Dark Hat

$18.00 $23.00

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Eight Perfect Shuffles Hat

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

Eight Perfect Shuffles Hat

$18.00 $23.00

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Pythagorean Theorem Dark Hat

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

Pythagorean Theorem Dark Hat

$18.00 $23.00

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Spiral of Theodorus Hat

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

Spiral of Theodorus Hat

$18.00 $23.00

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Finite Sums of Positive Integers Hat

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

Finite Sums of Positive Integers Hat

$18.00 $23.00

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Cowculator Hat

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

Cowculator Hat

$18.00 $23.00

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Tatami Diagram Hat

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

Tatami Diagram Hat

$18.00 $23.00

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Dodecagon Dissection Hat

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

Dodecagon Dissection Hat

$18.00 $23.00

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Pythagorean Theorem Classic Proof Hat

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

Pythagorean Theorem Classic Proof Hat

$18.00 $23.00

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Geometric Sum of Powers of 1/4 Hat

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

Geometric Sum of Powers of 1/4 Hat

$18.00 $23.00

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