### JavaScript math constants

In JavaScript Math is a global object with mathematical functions and constants.

Math object is extendible. for instance to make a function to calculate cuboid of a given number.

Math['cuboid'] = function(number) {

return number * number * number

}

or defining a constant

Math['some_constant'] = value;

You can use your new function like any other function ie

console.log(Math.cuboid(3)) // returns 27

console.log(Math.some_constant) // returns value

Math.E

Euler's constant and the base of natural logarithms;

console.log(Math.E) // returns 2.718281828459045

Math.LN2

Natural logarithm of 2;

console.log(Math.LN2) // returns 0.6931471805599453

Math.LN10

Natural logarithm of 10;

console.log(Math.LN10) // returns 2.302585092994046

Math.LOG2E

Base 2 logarithm of E;

console.log(Math.LOG2E) // returns 1.4426950408889634

Math.LOG10E

Base 10 logarithm of E;

console.log(Math.LOG10E) // returns 0.4342944819032518

Math.PI

Ratio of the a circle's circumference to its diameter;

console.log(Math.PI) // returns 3.141592653589793

Math.SQRT1_2

Square root of ½ (or equivalently, 1/√2over the square root of 2);

console.log(Math.SQRT1_2) // returns 0.7071067811865476

Math.SQRT2

Square root of 2;

console.log(Math.SQRT2) // returns 1.4142135623730951

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