Definition:Out-Degree

Definition
Let $G = \struct {V, E}$ be a digraph.

Let $v \in V$ be a vertex of $G$.

The out-degree of $v$ in $G$ is the number of arcs which are incident from $v$.

It is denoted $\map {\operatorname {outdeg}_G} v$, or just $\map {\operatorname {outdeg} } v$ if it is clear from the context which digraph is being referred to.

Also see

 * Definition:In-Degree


 * Definition:Degree of Vertex in the context of undirected graphs