What is the use of Math object in JavaScript ?

The Math object in JavaScript provides a set of methods and properties for mathematical constants and functions. It is a built-in object that allows for performing mathematical operations and accessing mathematical constants without creating an instance.

What is the Math Object?

The Math object is an inbuilt object that has attributes and methods for mathematical functions and constants. It’s not a function object. The Math object works with the Number type and does not have a constructor. All properties and methods of Math are fixed/static and can be called by using Math as an object without creating it.

For example, the cosine function is accessed using Math.cos(y), and the constant pi is accessed using Math.PI.

In this article, we will discuss various available methods & properties used in Javascript. We will start with the Math properties in Javascript. 

Static Math Properties

The Math properties and their descriptions are listed below:

Syntax

Math.property

Example: Math Properties

console.log("Math.PI :" + Math.PI);
console.log("Math.SQRT2:" + Math.SQRT2);
console.log("Math.SQRT1_2:" + Math.SQRT1_2);
console.log("Math.LN10:" + Math.LN10);
console.log("Math.LN2:" + Math.LN2);
console.log("Math.LOG10E:" + Math.LOG10E);
console.log("Math.LOG2E:" + Math.LOG2E);

Math.PI :3.141592653589793
Math.SQRT2:1.4142135623730951
Math.SQRT1_2:0.7071067811865476
Math.LN10:2.302585092994046
Math.LN2:0.6931471805599453
Math.LOG10E:0.4342944819032518
Math.LOG2E:1.44269504088...

Math Methods

The methods associated with the Math object are listed below, along with their descriptions.

Syntax

Math.method(number)

Example: Math Methods

console.log("ceil :" + Math.ceil(9.6));
console.log("floor :" + Math.floor(9.6));
console.log("round :" + Math.round(9.6));
console.log("sine :" + Math.sin(30));
console.log("cosine :" + Math.cos(30));
console.log("min :" + Math.min(30, 40));
console.log("max :" + Math.max(30, 40));
console.log("sign :" + Math.sign(-40));
console.log("abs :" + Math.sign(-40));

ceil :10
floor :9
round :10
sine :-0.9880316240928618
cosine :0.15425144988758405
min :30
max :40
sign :-1
abs :-1

Common Use Cases of Math Object

The Math object is widely used in various scenarios such as:

• Calculations: Performing arithmetic operations like addition, subtraction, multiplication, division, and more complex calculations involving trigonometric functions.
• Random Number Generation: Generating random numbers for simulations, games, or random selections.

  const randomNumber = Math.random();
  console.log("Random number:", randomNumber);