Update multiple NumPy array elements

Replace all elements in the array with a value smaller than 3 with 99.

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import numpy as np
 
a = np.array([
    [3, 1, 7],
    [4, 9, 2],
    [12, 3, 1],
    [12, 11, 8]
])
 
# update values here...

 
print(a)
# expected: [[3 99 7][4 9 99][12 3 99][12 11 8]]

Python

Setting up Python environment...

Output