lib/array.js
function random( len, mu, sigma, rand ) {
	var out;
	var draw;
	var i;

	draw = partial( mu, sigma, rand );
	// Ensure fast elements...
	if ( len < 64000 ) {
		out = new Array( len );
		for ( i = 0; i < len; i++ ) {
			out[ i ] = draw();
		}
	} else {
		out = [];
		for ( i = 0; i < len; i++ ) {
			out.push( draw() );
		}
	}
	return out;
}
function random( len, mu, sigma, rand ) {
	var out;
	var draw;
	var i;

	draw = partial( mu, sigma, rand );
	// Ensure fast elements...
	if ( len < 64000 ) {
		out = new Array( len );
		for ( i = 0; i < len; i++ ) {
			out[ i ] = draw();
		}
	} else {
		out = [];
		for ( i = 0; i < len; i++ ) {
			out.push( draw() );
		}
	}
	return out;
}
RANDOM // 
FUNCTION: random( len, mu, sigma[, rand] )
Creates an array of normally distributed random numbers.

@param {Number} len - array length
@param {Number} mu - mean parameter
@param {Number} sigma - standard deviation
@param {Function} [rand=Math.random] - random number generator
@returns {Number[]} array filled with normal random numbers