## sigmoid function

March 22, 2015 Leave a comment

### What is a sigmoid function ?

It is http://mathworld.wolfram.com/SigmoidFunction.html

This simple code is the standard way to plot it. I am using Octave.

x = -10:0.1:10; a = 1.0 ./ (1.0 + exp(-x)); figure; plot(x,a,'-','linewidth',3)