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vinhkhuc/simple_derivative.py

Last active January 14, 2018 23:59
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simple_derivative.py
from theano import tensor as T, function
x = T.dscalar('x')
y = x ** 2
dy = T.grad(cost=y, wrt=x) # Preparing symbolic gradient
df = function(inputs=[x], outputs=dy)
print(df(4)) # Output: 8
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