How to get the first element of a NumPy array?

You can get the first element of a NumPy array by specifying an index of 0 with square brackets ([]) after the array name. Here is an example:

import numpy as np

arr = np.array([1, 2, 3, 4, 5])

print(arr[0])  # output: 1

In this example, we imported NumPy, created a one-dimensional array arr with five elements, and then printed the first element of the array using square brackets with an index of 0 (arr[0]). The output shows that the first element of the array is 1.

Note that the index of the first element in a NumPy array is 0, not 1. Therefore, to get the second element of the array, you would use an index of 1 (arr[1]), and so on.

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