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))