EasiestANN_1.py

import numpy as np

# input data
input_layer = np.array([[5], [2]])
input_layer.shape

# initialize wegihts & bias
weights_1 = np.array([[2, -2], [3, 1]])
weights_1.shape 

weights_2 = np.array([[1], [2]])
weights_2.shape

# computation
node_0_output = np.dot(weights_1.T, input_layer)
node_1_input = node_0_output

node_1_output = np.dot(weights_2.T, node_1_input)
output_layer = node_1_output

# print output_layer
output_layer