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Mathematics sketches

Explore sketches, drawings, and illustrations that simplify ideas related to Mathematics.

The Figure Skater's Spin and Conservation of Angular Momentum Illustrated with equationsThe Figure Skater's Spin and the Conservation of Angular MomentumWhat is Naismith's Rule for calculating walking time in the mountains example explained with a mountain ridge with hikers and lines for the horizontal distance and time and ascent and timeNaismith's Rule for mountain hiking timeA breakdown of constructing the number 13 in the decimal system of base 10 next to 13 written in the base 2 of binaryBinaryThe travelling salesman problem illustration showing a bewildered salesman contemplating the many options he could take to visit all the places the need across AmericaThe travelling salesman problemThe 9-times table on your Fingers illustration: holding up both hands in front of you, the example of 3 x 9 is given; whereby the 3rd finger from the left is lowered leaving 2 fingers to the left of the gap and 7 fingers to the right. 2 and 7 gives 27. The 9 times table on your fingersWhat is the coastline paradox explained - meaning the length changes depending on the size of your ruler, with Great Britain's coastline as an exampleThe coastline paradoxAccuracy and Precision illustration: 4 circular targets with red dots marking a series of strikes show the difference between accuracy and precision. Accuracy and precisionIdempotence, or idempotent, illustrated with an idempotent action of look_at_cake that always has the same effect, compared with a non-idempotent action of eat_slice_of_cakeIdempotenceWhat is the golden ratio explained and the golden spiral and the golden ratio in faces, art, nature, architecture and how to calculate itThe Golden Ratio: Nature's Perfect ProportionsWhat is the potato radius example explained: showing a bumpy potato-like asteroid at the centre of an expanding circle and how it becomes rounder and more planet like as it gets largerThe Potato Radius: When Asteroids Turn SphericalThe Monty Hall problemAsymmetry of returnsFitts’ LawMeasures of central tendency: mean, median, modeCommon distributions: normal, skewed, paretoThe most beautiful equation
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