Folks who work in discrete math (or with networks graphs for any reason) might appreciate the built in support for Graphviz. For example, we can generate this image:
graph {
a -- b;
b -- c;
c -- d;
d -- e;
e -- g;
a -- g;
a -- c;
a -- d;
a -- e;
b -- d;
b -- e;
b -- g;
c -- e;
c -- g;
d -- g;
}
By simply including the Graphviz code like so:
[graphviz engine=circo]
graph {
a -- b;
b -- c;
c -- d;
d -- e;
e -- g;
a -- g;
a -- c;
a -- d;
a -- e;
b -- d;
b -- e;
b -- g;
c -- e;
c -- g;
d -- g;
}
[/graphviz]