From biological to artificial neurons• The input signals are summed by the cell body and the signalis passed on according to an activation function denoted by f.• A typical artificial neuron with n input dendrites can berepresented by the formula that follows.• The w weights allow each of the n inputs (denoted by xi) to contribute a greater or lesser amount to the sum of inputsignals.• The net total is used by the activation function f(x), and the resulting signal, y(x), is the output axon: