Question

What do you understand by rank of an ndarray?

Answer 1

The rank of an ndarray means the number of dimensions (axes) present in the array. It tells us whether the array is one-dimensional, two-dimensional, three-dimensional, and so on.

• A 1-dimensional array has rank 1.
• A 2-dimensional array has rank 2.
• A 3-dimensional array has rank 3.

import numpy as np
a = np.array([[1, 2], [3, 4]])
print(a.ndim)

Output:

2

Therefore, the rank of the given ndarray is 2.