JavaScript Math cbrt() Method (original) (raw)

Last Updated : 12 Jul, 2024

The **Math.cbrt() method is used to find the cube root of a number.

**Syntax:

Math.cbrt(x)

**Parameters: This method accepts a single parameter as mentioned above and described below:

**Returns: It returns the cube root of the given number.

**Example: Below is an example of the Math.cbrt() Method.

javascript `

console.log("cbrt of 64 : " + Math.cbrt(64)); console.log("cbrt of 27: " + Math.cbrt(27)); console.log("cbrt of 0: " + Math.cbrt(0)); console.log("cbrt of -1: " + Math.cbrt(-1)); console.log("cbrt of -27: " + Math.cbrt(-27)); console.log("cbrt of Infinity : " + Math.cbrt(Infinity));

`

Output

cbrt of 64 : 4 cbrt of 27: 3 cbrt of 0: 0 cbrt of -1: -1 cbrt of -27: -3 cbrt of Infinity : Infinity

**Example: Here cube root of 8 is calculated to 2 because when any 3 times repeated any number is present inside of the cube root then only one number is taken out as the value of the cube root. ∛8 = ∛2*2*2 = 2

JavaScript `

console.log("cbrt of 8 : " + Math.cbrt(8));

`

**Example: Errors and Exceptions, it is an error case because the cube root of a complex number can not be found which is why its parameter gives an error.

javascript `

// Cube root of complex number can // not be calculated. console.log("cbrt of Complex no : " + Math.cbrt(1 + 2i));

`

**Output:

Error: Invalid or unexpected token

**Example: The cube root of the string can not be found which is why the string parameter of the function gives NaN i.e., not a number. Only integer value can be used as the parameter for the function.

javascript `

// Only number can be used as the parameter // here string as parameter gives NaN i.e, // not a number. console.log("cbrt of a string : " + Math.cbrt("gfg"));

`

**Output:

cbrt of a string: NaN

**Example: Whenever we need to get the cube root of any number that time we take the help of the Math.cbrt() function in JavaScript.

javascript `

// Here the Math.cbrt() function // calculates cube root for // different numbers taken as // function's parameter. console.log("Output : " + Math.cbrt(125)); console.log("Output : " + Math.cbrt(23));

`

**Output:

Output : 5
Output : 2.8438669798515654

We have a complete list of Javascript Math Objects methods, to check those please go through this Javascript Math Object Complete reference article.

**Supported Browsers: