# How to Calculate Roots in PHP (Square Root, Cube Root, nth Root)

To find the nth root of a number in PHP, we can use the `pow(base, power)`

function, for example the cube root of 27 is equal to 27 raised to the power of 1/3, , since . In general the nth root of x, .

To calculate the square root of a number, we can also use the `sqrt(number)`

function.

## Example

Some example code showing how to calculate roots in PHP is below:

The output from this example is as follows: