network

Mathematically, a network is a kind of graph, which is generally considered to refer to a weighted graph. In addition to the mathematical definition, the network has a specific physical meaning, that is, the network is a model abstracted from a practical problem of the same type. In the computer field, the network is a virtual platform for information transmission, reception and sharing. Through it, the information of each point, surface and volume is linked together, so as to realize the sharing of these resources. The Internet is th...