2d array using numpy code example

Example 1: numpy generate random 2d array

import numpy as np
a=np.random.rand(3,3)
print(a)

Example 2: 2d array pytho

# 2D array that is 3x4 (3 columns, 4 rows)
# note that it is essentially an array of lists
arr = [
		[11, 12, 5],
        [15, 6, 10],
        [10, 8, 12],
        [12, 15, 8]
        ]