Brendan O’Connor • 10/31/2013

tanh is a rescaled logistic sigmoid function

The article clarifies the connection between the tanh (hyperbolic tangent) and logistic sigmoid functions, showing tanh is a rescaled and stretched version with outputs from -1 to 1. It explains why this range is more convenient for neural networks and provides the mathematical derivation and a plot comparing the two functions.

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#Machine Learning #mathematics #Neural Networks