The first task of this algorithm is to initialize the activation of all units. This is necessary each time a new pattern is loaded to the network. The ART2 net is initialized for a new pattern now. The output and activation will be updated with synchronous propagations until a stable state is reached. One synchronous propagation cycle means that each neuron calculate its output and then its new activation. The required parameters are , a, b, c, in field1, field2, field3, field4, field5 respectively.