degree(Digraph,Thing) -- returns the degree of a vertex in a digraph

Synopsis

• Function: degree

• Usage:

  x = degree(D,v)

• Inputs:
  • D, an instance of the type Digraph,
  • v, a thing, a vertex in the graph/digraph
• Outputs:
  • x, an integer,

Description

i1 : D = digraph({1,2,3,4},{{1,2},{2,3},{3,4},{4,2},{2,4}});

i2 : degree(D, 3)

o2 = 2

i3 : degree(D, 2)

o3 = 3

See also

• neighbors -- returns the neighbors of a vertex in a graph
• parents -- returns the parents of a vertex on a digraph
• children -- returns the children of a vertex of a digraph