The Numpy library in Python comes with a number of built-in functions to perform common mathematical operations on arrays. In this tutorial, we will look at one such function that helps us get the element-wise cube root of a Numpy array with the help of some examples.

## How to get the cube root in Numpy?

You can use the `numpy.cbrt()`

function to get the cube root of each element in a Numpy array. Pass the array as an argument.

The following is the syntax –

numpy.cbrt(ar)

It returns an array containing the cube root value of each element in the passed array.

Let’s now look at a step-by-step example of using the `numpy.cbrt()`

function.

### Step 1 – Create a Numpy array

First, we will create a Numpy array that we will use throughout this tutorial.

import numpy as np # create numpy array ar = np.array([1, 0, 8, 27]) # display the array print(ar)

Output:

[1 0 8 27]

Here, we used the `numpy.array()`

function to create a Numpy array containing some numbers.

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### Step 2 – Get the cube root using `numpy.cbrt()`

To get the cube root of each element in a Numpy array, pass the array as an argument to the `numpy.cbrt()`

function.

Let’s get the cube root for the array created above.

# get the cube root of each element np.cbrt(ar)

Output:

array([1., 0., 2., 3.])

We get a Numpy array with the cube root value of each element in the array `ar`

.

The `numpy.cbrt()`

function works similarly on higher-dimensional arrays. For example, let’s apply this function to a 2D array of some numbers.

# create 2D numpy array ar = np.array([[8, 27, 8], [0, 64, 0], [1, 125, 8]]) # get the cube root of each element np.cbrt(ar)

Output:

array([[2., 3., 2.], [0., 4., 0.], [1., 5., 2.]])

You can see that we get the cube root value of each element in the 2D array.

For more on the `numpy.cbrt()`

function, refer to its documentation.

You might also be interested in –

- Numpy – Get the Sign of Each Element in Array
- Get the Median of Numpy Array – (With Examples)
- Numpy – Get Standard Deviation of Array Values
- Numpy – Get Min Value in Array

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