MathVisualProofs

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

Pythagorean Theorem Dark T-Shirt

$16.00 $22.00

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

Eight Perfect Shuffles T-Shirt

$16.00 $22.00

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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 T-Shirt

$16.00 $22.00

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

Spiral of Theodorus T-Shirt

$16.00 $22.00

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

Eight Perfect Shuffles Dark T-Shirt

$16.00 $22.00

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Description: A circle divided into three parts

Three Equal Area Parts T-Shirt

$21.00 $25.00

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

Tatami Diagram T-Shirt

$16.00 $22.00

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

Pythagorean Theorem Classic Proof T-Shirt

$16.00 $22.00

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

Dodecagon Dissection T-Shirt

$21.00 $25.00

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

Geometric Sum of Powers of 1/4 T-Shirt

$16.00 $22.00

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Description: A visual proof of the area formula for a circle.

Circle Area T-Shirt

$16.00 $22.00

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Description: Eight Perfect Shuffles diagram with both white and black background.

Eight Perfect Shuffles Digital Product

$2.39 $3.00

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Description: Two vector graphic digital prints showing a classic visual proof the theorem of Nicomachus that the sum of the first n positive cubes is the square of the sum of the first n positive integers. One print has a black background and the other has a white background. These can be printed at any scale.

Sums of Cubes Digital Product

$2.50 $3.00

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Description: This is a construction that can be done with straightedge and compass dividing a circle into three equal area pieces.

Divide Circle Into Three Equal Areas Digital Product

$1.50 $2.00

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Description: Two vector graphic digital prints showing a classic visual proof of the fact that the sum of the first n positive integers is n(n+1)/2. One print has a black background and the other has a white background. These can be printed at any scale.

Sums of Positive Integers Digital Product

$2.00 $2.50

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Description: Two vector graphic digital prints showing a classic visual proof for determining the area of a circle with radius r using wedges. One print has a black background and the other has a white background.

Circle Area Digital Print Digital Product

$2.00 $2.50

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Description: This is a print showing the Kurshak tiling of the dodecagon. From this tiling, you can see/prove that the area of the unit dodecagon is exactly 3.

Unit Dodecagon Area Print Digital Product

$2.00 $2.50

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Description: Two vector graphic digital prints showing a classic visual proof for the Pythagorean theorem One print has a black background and the other has a white background. These can be printed at any scale.

Pythagorean Theorem Visual Proof Print Digital Product

$1.50 $2.00

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Description: A printable trigonometry diagram showing one way to think about the six standard trigonometry functions. Implicit in this diagram are three important trigonometric identities for calculus.

Trigonometry Diagram: Sine, Cosine, Tangent Identities Digital Product

$2.00 $2.50

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Description: This is a printable pdf of the Spiral of Theodorus. This shows the constructability of the square roots of 1 to 17 (and higher if you continue). This would make a great poster for a classroom.