

In [2]:

    
import os



In [3]:

    
import numpy as np



In [4]:

    
x = 4
print x



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import matplotlib.pyplot as plt
%matplotlib inline



In [8]:

    
x = np.random.randn(4)
print x









    



[-1.10863928  0.87381541  0.88864128 -0.46404298]

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In [ ]:

    
from h