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pi
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Editing: calc.js
'use strict' /* A simple π estimation function using a Monte Carlo method * For 0 to `points`, take 2 random numbers < 1, square and add them to * find the area under that point in a 1x1 square. If that area is <= 1 * then it's *within* a quarter-circle, otherwise it's outside. * Take the number of points <= 1 and multiply it by 4 and you have an * estimate! * Do this across multiple processes and average the results to * increase accuracy. */ module.exports = function (points, callback) { let inside = 0 , i = points while (i--) if (Math.pow(Math.random(), 2) + Math.pow(Math.random(), 2) <= 1) inside++ callback(null, (inside / points) * 4) }
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