PHP Manual
Функции Fann
Sets the steepness of the activation steepness for all neurons in the all hidden layers

fann_set_activation_steepness_hidden

(PECL fann >= 1.0.0)

fann_set_activation_steepness_hidden — Sets the steepness of the activation steepness for all neurons in the all hidden layers

fann_set_activation_steepness_hidden ( resource $ann , float $activation_steepness ) : bool

Sets the steepness of the activation steepness for all neurons in the all hidden layers.

Возвращает true в случае успешного выполнения, или false в противном случае.

fann_set_activation_steepness() - Sets the activation steepness for supplied neuron and layer number
fann_set_activation_steepness_layer() - Sets the activation steepness for all of the neurons in the supplied layer number
fann_set_activation_steepness_output() - Sets the steepness of the activation steepness in the output layer
fann_get_activation_steepness() - Возвращает крутизну активации для поставляемого нейрона и номера слоя
fann_set_activation_function() - Sets the activation function for supplied neuron and layer