Content about “
golden ratio

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pi cake

Happy pi day 2025!

We celebrate pi day with a look at the number itself as well as some of its fellow numbers we particularly like.

Article

Metallic numbers: Beyond the golden ratio

You've heard of the golden ratio but have you heard of the silver ratio? And all its other cousins called the metallic numbers? Read this article to meet the family!
Collection

Fantastic Fibonacci

Bees do it, rabbits do it, and luckily, we humans can do it too: explore the famous Fibonacci sequence!
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The life and numbers of Fibonacci

The Fibonacci sequence – 0, 1, 1, 2, 3, 5, 8, 13, ... – is one of the most famous pieces of mathematics. We see how these numbers appear in multiplying rabbits and bees, in the turns of sea shells and sunflower seeds, and how it all stemmed from a simple example in one of the most important books in Western mathematics.
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The lost mathematicians: Numbers in the (not so) dark ages

A commonly held belief about medieval Europe is that academic pursuits had fallen into a dark age. The majority of scholars were churchmen, and their enquiry often related to some principle of church practice. But is there a value to respecting the tenacity of historic mathematicians?