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| '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)
| }
|
|
