Derivative of Sigmoid Function

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The sigmoid function is defined as:

Eqn. 1
Eqn. 2

Using power rule:

Eqn. 3
Eqn. 4
Eqn. 5
Eqn. 6
Eqn. 7
Eqn. 8
Eqn. 9

Making substitution from Eqn. 1:

Eqn. 10

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Ali Naeem Chaudhry

An enthusiastic Machine Learning Engineer who has a passion to gain deep insights into the nitty-gritty of AI and imparting it to others.