# Category: math

## How to Compute the Derivative of a Sigmoid Function (fully worked example)

This is a sigmoid function:

The sigmoid function looks like this (made with a bit of MATLAB code):

x=-10:0.1:10; s = 1./(1+exp(-x)); figure; plot(x,s); title('sigmoid'); |

Alright, now let’s put on our calculus hats…

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## Derivatives of trig functions

## Here’s a cheat sheet for the derivatives of trigonometric functions

Derivative of `sin(x)`

:

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