Math functions in JavaScript

JavaScript provides a wide range of built-in math functions that allow you to perform various mathematical operations. Here are some commonly used math functions in JavaScript:

Function	Description
`Math.abs(x)`	Returns the absolute value of `x`
`Math.ceil(x)`	Rounds `x` up to the nearest integer
`Math.floor(x)`	Rounds `x` down to the nearest integer
`Math.round(x)`	Rounds `x` to the nearest integer
`Math.max(x1, x2, ..., xn)`	Returns the largest of the given numbers
`Math.min(x1, x2, ..., xn)`	Returns the smallest of the given numbers
`Math.pow(x, y)`	Returns `x` raised to the power of `y`
`Math.sqrt(x)`	Returns the square root of `x`
`Math.random()`	Generates a random number between 0 and 1 (exclusive)
`Math.sin(x)`	Returns the sine of an angle `x` (in radians)
`Math.cos(x)`	Returns the cosine of an angle `x` (in radians)
`Math.tan(x)`	Returns the tangent of an angle `x` (in radians)
`Math.log(x)`	Returns the natural logarithm (base e) of `x`
`Math.exp(x)`	Returns `e` raised to the power of `x`
`Math.floor(Math.random() * (max - min + 1)) + min`	Generates a random integer between `min` and `max` (inclusive)

Math functions in JavaScript example

Simple example code showcasing the usage of math functions in JavaScript:

1. Finding the absolute value of a number:

let x = -5;
let absX = Math.abs(x);
console.log(absX);

2. Rounding a number up:

let x = 3.7;
let roundedUp = Math.ceil(x);
console.log(roundedUp);

3. Generating a random number between 0 and 1:

let randomNum = Math.random();
console.log(randomNum);

4. Calculating the square root of a number:

let x = 16;
let sqrtX = Math.sqrt(x);
console.log(sqrtX);

5. Generating a random integer between a given range:

let min = 1;
let max = 10;
let randomInt = Math.floor(Math.random() * (max - min + 1)) + min;
console.log(randomInt);

6. Calculating the sine of an angle:

let angle = Math.PI / 6;  // 30 degrees in radians
let sineValue = Math.sin(angle);
console.log(sineValue);

Here’s an example that includes multiple use cases of math functions in JavaScript:

// Finding the absolute value of a number
let x = -5;
let absX = Math.abs(x);
console.log(absX);  // Output: 5

// Rounding a number up
let y = 3.7;
let roundedUp = Math.ceil(y);
console.log(roundedUp);  // Output: 4

// Generating a random number between 0 and 1
let randomNum = Math.random();
console.log(randomNum);  // Output: a random decimal between 0 and 1

// Calculating the square root of a number
let z = 16;
let sqrtZ = Math.sqrt(z);
console.log(sqrtZ);  // Output: 4

// Generating a random integer between a given range
let min = 1;
let max = 10;
let randomInt = Math.floor(Math.random() * (max - min + 1)) + min;
console.log(randomInt);  // Output: a random integer between 1 and 10 (inclusive)

// Calculating the sine of an angle
let angle = Math.PI / 6;  // 30 degrees in radians
let sineValue = Math.sin(angle);
console.log(sineValue);  // Output: 0.5 (approximately)

Output:

You can run this code in a JavaScript environment (such as a browser console or a Node.js environment) to see the corresponding outputs.

Comment if you have any doubts or suggestions on this JS Math function list tutorial.

Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version

Math functions in JavaScript