Can a graph have directed and undirected edges?

All the edges in a graph must be either DIRECTED or UNDIRECTED. The two types of edges cannot be mixed together. A graph that uses only DIRECTED EDGES is called a DIRECTED GRAPH. Likewise, a graph that uses only UNDIRECTED EDGES is called an UNDIRECTED GRAPH.

Can a network be both directed and undirected?

One can represent a weighted graph by different sizes of nodes and edges. In some contexts, one may work with graphs that have multiple edges between the same pair of nodes. We will consider both directed and undirected graphs, but won’t allow multiple connections or self-connections.

Can a directed graph be undirected?

An undirected graph is graph, i.e., a set of objects (called vertices or nodes) that are connected together, where all the edges are bidirectional. An undirected graph is sometimes called an undirected network. In contrast, a graph where the edges point in a direction is called a directed graph.

Can a directed graph have multiple edges?

A directed graph is simple if there is at most one edge from one vertex to another. A directed graph that has multiple edges from some vertex u to some other vertex v is called a directed multigraph.

How is the adjacency matrix for an undirected graph different from that of a directed graph?

In a directed network, each edge traversed by a path must be traversed in the correct direction for that edge. In an undirected network edges can be traversed in either direction.

What are two differences between a directed graph and an undirected graph?

Undirected graphs have edges that do not have a direction. The edges indicate a two-way relationship, in that each edge can be traversed in both directions. Directed graphs have edges with direction. The edges indicate a one-way relationship, in that each edge can only be traversed in a single direction.

When entire graph is having undirected edges then such graph is known as?

Non-Directed Graph- A graph in which all the edges are undirected is called as a non-directed graph.

Can undirected graphs have parallel edges?

In graph theory, multiple edges (also called parallel edges or a multi-edge), are, in an undirected graph, two or more edges that are incident to the same two vertices, or in a directed graph, two or more edges with both the same tail vertex and the same head vertex.