mmalone/mcpi.html Secret

## mcpi.html
<!DOCTYPE html>
<html>
<div>Pi is: <span id="pi"></span></div>
<div>After: <span id="runs"></span> runs</div>
<div>Runtime: <span id="time"></span> seconds</div>
<script>
window.onload = function() {
    var pi_elem = document.getElementById('pi')
      , runs_elem = document.getElementById('runs')
      , time_elem = document.getElementById('time');


    var radius = Math.pow(2, 16)
      , r_sqrd = Math.pow(radius, 2)
      , cycles = 1e10
      , numbers = 0
      , inside = 0
      , start = new Date();

    var estimate_pi = function estimate_pi() {
        return (4 * inside) / numbers;
    };

    (function sample() {
        for (var i = 0; i < 1e7 && numbers < cycles; i++, numbers++) {
            var x = (Math.random() * radius) | 0
              , y = (Math.random() * radius) | 0;

            if ((Math.pow(x, 2) + Math.pow(y, 2)) < r_sqrd) {
                inside += 1;
            }
        }
        pi_elem.innerHTML = estimate_pi();
        runs_elem.innerHTML = numbers;
        time_elem.innerHTML = ((new Date() - start) / 1000).toString();
        if (numbers < cycles) {
            setTimeout(sample, 0);
        }
    })();
}
</script>
</html>
	<!DOCTYPE html>
	<html>
	<div>Pi is: <span id="pi"></span></div>
	<div>After: <span id="runs"></span> runs</div>
	<div>Runtime: <span id="time"></span> seconds</div>
	<script>
	window.onload = function() {
	var pi_elem = document.getElementById('pi')
	, runs_elem = document.getElementById('runs')
	, time_elem = document.getElementById('time');


	var radius = Math.pow(2, 16)
	, r_sqrd = Math.pow(radius, 2)
	, cycles = 1e10
	, numbers = 0
	, inside = 0
	, start = new Date();

	var estimate_pi = function estimate_pi() {
	return (4 * inside) / numbers;
	};

	(function sample() {
	for (var i = 0; i < 1e7 && numbers < cycles; i++, numbers++) {
	var x = (Math.random() * radius) \| 0
	, y = (Math.random() * radius) \| 0;

	if ((Math.pow(x, 2) + Math.pow(y, 2)) < r_sqrd) {
	inside += 1;
	}
	}
	pi_elem.innerHTML = estimate_pi();
	runs_elem.innerHTML = numbers;
	time_elem.innerHTML = ((new Date() - start) / 1000).toString();
	if (numbers < cycles) {
	setTimeout(sample, 0);
	}
	})();
	}
	</script>
	</html>