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In [1]:

    
import numpy as np
x = np.array([0, 1])
w = np.array([0.5, 0.5])
w * x









    Out[1]:





array([ 0. ,  0.5])



In [2]:

    
np.sum(w * x)









    Out[2]:





0.5



In [5]:

    
b = -0.7
np.sum(w * x) + b









    Out[5]:





-0.19999999999999996



In [ ]: