Happy Pi Day! 🥧
And Happy Birthday to Albert Einstein.

Here are a few mathematical representations of π developed over the ages. Can you identify the mathematicians behind these equations?

en.wikipedia.org/wiki/Pi
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The remarkable equation for π by Indian mathematician Srinivasa Ramanujan (1887 - 1920) is an infinite series with some puzzling numbers. The first k terms of the sum generate π whose first ~8*k decimal digits are accurate. These digits do not change with additional terms 🤔

E.g., the 1st term gives π = 3.141592 73001..., which is accurate to 6 decimal places.

Using 2 terms, we get π = 3.141592 653589793 87808..., which is accurate to 15 decimal places.

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