# Softsign function (chart) Calculator

## Calculates a table of the softsign functions and draws the chart.

 The softsign function is used in the activation function of the neural network.
 initial value x [increment repetition ]
 $\normal Softsign\ function\ \phi (x)\\[10]\normal \phi (x) = \large \frac{x}{1+|x|} \\[15]\normal \phi ' (x) = \large \frac{1}{(1+|x|)^2} \\[15]$

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