Have you ever worked with the NumPy library? Do you know what it is used for?

NumPy is a library for the Python language that provides support for large multi-dimensional arrays and matrices, along with a large collection of mathematical functions to operate on these arrays. It is essential for efficient data computations, especially in scientific and engineering tasks where performance and ease of working with numerical data are important.

Example of using NumPy to create an array and calculate the mean:

import numpy as np

arr = np.array([1, 2, 3, 4, 5])
mean_value = np.mean(arr)
print(mean_value)  # Outputs 3.0