sum_of_array.py

import numpy as np

layer_outputs = np.array([[4.8,1.21,2.385],
                         [8.9,-1.81,0.2],
                         [1.41,1.051,0.026]])
print('Sum without axis')
print(np.sum(layer_outputs))

print('This will be identical to the above since default is None: ')

print(np.sum(layer_outputs, axis = 0))
print(np.sum(layer_outputs, axis = 1))