/// <summary> Calculates and adds the changes to be made to this <see cref="Neuron"/> from the given <paramref name="error"/>. </summary>
/// <param name="neuronLayerChange"> The changes to make to the containing <see cref="NeuronLayer"/>. </param>
/// <param name="weightLayerChange"> The changes to make to the previous <see cref="WeightLayer"/>. </param>
/// <param name="error"> The previously calculated delta. </param>
/// <returns> The calculated delta of this <see cref="Neuron"/>. </returns>
public float CalculateChanges(NeuronLayerChange neuronLayerChange, WeightLayerChange weightLayerChange, float error)
{
// Calculate the delta.
float delta = activationFunction.ActivationDerivative(Output) * error;
float p = activationFunction.ActivationDerivative(Output);
if (p < 0)
{
throw new Exception();
}
// Add the changes to be made.
addChanges(neuronLayerChange, weightLayerChange, delta);
// Return the calculated delta.
return(delta);
}