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wellcaffeinated/math-utils.js

Created November 19, 2013 04:40
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Very crude approximation to gaussian random number. It's fast, but it's NOT accurate.
Raw
math-utils.js
// VERY crude approximation to a gaussian random number.. but fast
var gauss = function gauss( mean, stddev ){
var r = 2 * (Math.random() + Math.random() + Math.random()) - 3;
return r * stddev + mean;
};
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