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:
- x: This parameter is simply a number whose cube root needs to be found.
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)); |
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)); |
cbrt of 8 : 2
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:
- Google Chrome 38.0
- Firefox 25.0
- Opera 25.0
- Safari 8.0
