What does the Pi symbol mean? Because we know it’s (sadly) not about pie

What does the Pi symbol mean? Because we know it’s (sadly) not about pie

Every year on March 14th, teachers, scientists, and those who just love math and numbers celebrate Pi Day, a special day that pays tribute to Pi… otherwise known as the number 3.14 (plus a bunch of other digits that are really hard to memorize). But unless you’re a math teacher, you might not know why that number is represented by a certain symbol. So what does the Pi symbol mean?

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