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import numpy as np


    

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a = np.arange(16).reshape((2,2,2,2))
print(a)

print('-------')
aa = np.reshape(a, (a.shape[0]*a.shape[1], -1))
print(aa)


    

    




[[[[ 0  1]
   [ 2  3]]

  [[ 4  5]
   [ 6  7]]]


 [[[ 8  9]
   [10 11]]

  [[12 13]
   [14 15]]]]
-------
[[[ 0  1  2  3]
  [ 4  5  6  7]]

 [[ 8  9 10 11]
  [12 13 14 15]]]

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b = np.ones(a.shape)
print(b)


    

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b[a<3] = 0
print(b)


    

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print(a * b)


    

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a[1] = -1
# print(np.maximum(a, 0))
print(a>0)


    

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print(a>2)
print(b)
print((a>2)*b)


    

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print(np.zeros((3,)))


    

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for i in xrange(4):
    print('k'+str(i))


    

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q = np.random.randn(2,3)
print(q)


    

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print(np.prod(4,5,6))


    

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