test_random_normal_distr.html
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	<!DOCTYPE html>

	<html>
	<head>
	<script src="https://d3js.org/d3.v4.min.js"></script>
	<script src="https://cdn.plot.ly/plotly-latest.min.js"></script>

	</head>

	<div id="tester" style="width:600px;height:250px;"></div>


	<body>
	<script>

	var random_numbers=[];

	function random_from_normal_distribution(mean, variance) {

	var u1 = Math.random(); // should belong to ]0,1]
	if (u1==0){
	u1=1;
	}

	var u2 = Math.random(); // should belong to ]0,1]
	if (u2==0){
	u2=1;
	}
	theta=23.14u2;
	var r= Math.sqrt(-2*Math.log(u1));
	var x=r*Math.cos(theta);
	var y=r*Math.sin(theta);

	x = mean + Math.sqrt(variance) * x;
	// return only one of the two normal random variable generated
	return x;
	}

	for (var i=1; i<1000; i++){
	rand=1/random_from_normal_distribution(150, 0.05*150);
	random_numbers.push(rand);
	}

	var data = [
	{
	y: random_numbers,
	type: 'histogram',
	marker: {
	color: 'blue',
	},
	}
	];

	TESTER = document.getElementById('tester');

	Plotly.newPlot(TESTER, data);

	</script>
	</body>

	</html>