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calebeby/gregory–leibniz-series.js

Last active May 3, 2017 01:58
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gregory–leibniz-series.js
const iterations = 1000000000
var pi = 0
const getPi = () => {
for (let i = 1; i <= iterations; i += 4) {
pi += 4 / i
pi -= 4 / (i + 2)
}
}
getPi()
console.log(pi)
// 3.141592651589258 after 45s
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