micromass said:
micromass said:
A directed graph is a type of graph in which the edges have a specific direction. This means that the relationship between two vertices is one-way, unlike in an undirected graph where the relationship is bidirectional.
A reflexive graph is a directed graph in which every vertex has a self-loop, meaning an edge that connects the vertex to itself. This indicates that every vertex has a relationship with itself.
A symmetric graph is one in which the direction of the edges can be reversed without changing the graph's structure. In other words, if there is an edge from vertex A to vertex B, there is also an edge from vertex B to vertex A.
A transitive graph is a directed graph in which there is a path from one vertex to another through a series of edges. This means that if there is an edge from vertex A to vertex B, and an edge from vertex B to vertex C, there is also an edge from vertex A to vertex C.
Directed graphs have many practical applications, such as in social networks, transportation systems, and computer networks. They can be used to model relationships between individuals, the flow of traffic, or the connections between different devices in a network.
