PI (JavaScript)

The value of pi.

Defined in

Math.PI

PI is a constant.

The value of pi is approximately 3.141592653589793.

This button onclick event calculates the area and circumference of a circle given the radius.

sessionScope.area =
	sessionScope.radius * sessionScope.radius * Math.PI;
sessionScope.circum =
	2 * sessionScope.radius * Math.PI