Divide any circle’s circumference by its diameter and you get pi. But what, exactly, are its digits? Measuring physical circles won’t tell you—your tools are too clunky to discover pi’s endless ...
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100-year-old formulae for pi are more than just math, unravel modern black hole mysteries
More than a hundred years ago, long before anyone imagined supercomputers or black hole simulations, legendary Indian mathematician Srinivasa Ramanujan wrote down a set of formulas to calculate the ...
Most of us first hear about the irrational number π (pi)—rounded off as 3.14, with an infinite number of decimal digits—in school, where we learn about its use in the context of a circle. More ...
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