Map between circles. When the first circle is mapped $N$ times to the second circle, we can visualise it as $N$ circles
![](https://i0.wp.com/chalkdustmagazine.com/wp-content/uploads/2024/04/clare.jpg?resize=150%2C150&ssl=1)
Clare (like gare) is a Chalkdust editor. In her spare time, she’s an assistant professor at Durham University. She likes Skittles, probability, and making the magazine look more like Cosmo.
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