Machine Learning - The Sigmoid Function

标签：Function w1 Machine w2 Learning x2 x1

Calculate Node Output.

Task
You are given the values for w1, w2, b, x1 and x2 and you must compute the output for the node. Use the sigmoid as the activation function.

Input Format
w1, w2, b, x1 and x2 on one line separated by spaces

Output Format
Float rounded to 4 decimal places

Sample Input
0 1 2 1 2

Sample Output
0.9820

 

Explanation
w1 = 0, w2 = 1, b = 2, x1 = 1, x2 = 2

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import math w1, w2, b, x1, x2 = [float(x) for x in input().split()]
f=-1*(w1*x1+w2*x2+b)
y=1/(1+math.e**f)
print(round(y,4))

标签：Function,w1,Machine,w2,Learning,x2,x1
From： https://www.cnblogs.com/tinghae/p/18028423