In [1]:

    

from keras import backend as K
import numpy as np


    

    




Using TensorFlow backend.
/Users/vanpelt/.pyenv/versions/3.6.4/Python.framework/Versions/3.6/lib/python3.6/importlib/_bootstrap.py:219: RuntimeWarning: numpy.dtype size changed, may indicate binary incompatibility. Expected 96, got 88
  return f(*args, **kwds)
/Users/vanpelt/.pyenv/versions/3.6.4/Python.framework/Versions/3.6/lib/python3.6/importlib/_bootstrap.py:219: RuntimeWarning: numpy.dtype size changed, may indicate binary incompatibility. Expected 96, got 88
  return f(*args, **kwds)

In [6]:

    

x = K.variable(value=2)
y = K.variable(value=4)
print(x*y)


    

    




Tensor("mul:0", shape=(), dtype=float32)

In [7]:

    

print(K.eval(x*y))


    

    




8.0

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