Math

Math is different from the other built-in objects because it cannot be used as a constructor to create objects. It's just a collection of static functions and constants. Some examples to illustrate the differences are as follows:

> typeof Date.prototype;
"object"
> typeof Math.prototype;
"undefined"
> typeof String;
"function"
> typeof Math;
"object"

Members of the Math object

Property/method	Description
Math.E Math.LN10 Math.LN2 Math.LOG2E Math.LOG10E Math.PI Math.SQRT1_2 Math.SQRT2	These are some useful math constants, all read-only. Here are their values: > Math.E; 2.718281828459045 > Math.LN10; 2.302585092994046 > Math.LN2; 0.6931471805599453 > Math.LOG2E; 1.4426950408889634 > Math.LOG10E; 0.4342944819032518 > Math.PI; 3.141592653589793 > Math.SQRT1_2; 0.7071067811865476 > Math.SQRT2; 1.4142135623730951
Math.acos(x) Math.asin(x) Math.atan(x) Math.atan2(y, x) ...