Why does Pi show up in so many diverse equations if it’s only related to a circle?

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Is Pi more than just a ratio for circles? Is there a easy way to understand the universality of Pi?

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Anonymous 0 Comments

Pi isn’t to do with circles. It is a fundamental constant underpinning many aspects of mathematics, one of those happens to be circles.

It is actually the period of a function that is the very core to many aspects of modern mathematics, but sadly I do not understand the field well enough to give an ELI5.

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