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Update NumPy array element

Replace the element with a value of 9 in the array with the value 99.
import numpy as np a = np.array([ [3, 1, 7], [4, 9, 2], [12, 3, 1], [12, 11, 8] ]) # update value here...
print(a) # expected: [[3 1 7][4 99 2][12 3 1][12 11 8]]
Python
Setting up Python environment...
Output