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udacity/python/Deep Learning/Introduction to Neural Networks/Softmax/softmax.py

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Python

import numpy as np
# Write a function that takes as input a list of numbers, and returns
# the list of values given by the softmax function.
def softmax(L):
expL = np.exp(L)
sumExpL = sum(expL)
result = []
for i in expL:
result.append(i * 1.0 / sumExpL)
return result
# Note: The function np.divide can also be used here, as follows:
# def softmax(L):
# expL = np.exp(L)
# return np.divide (expL, expL.sum())