# This is a non-obvious value of essays
Figure about what is?
According to Baidu Encyclopedia:
"Graph Theory [On] FIG is a branch of mathematics which in FIG study. Graph theory FIG pattern is given by a number of points and a line connecting the two points it constituted, commonly used to describe this pattern a particular relationship between certain things, things with point represents, with the connection between the two lines represents the corresponding relationship has two things. "
According to their own understanding:
Graph theory, ah, there is a lot of points , some points there are between edges , points have their own nature, the side has its own character. Then graph theory is the study of these points and edges.
Figure may be various, for example:
https://csacademy.com/app/graph_editor/
This is a graph (G)
It is also a map, but you can also find in fact, this is just the definition of that figure G.
Under certain preconditions that we set it can be expressed as such:
(This is a graph editor own control panel, expressed a number of very common side two-way between two points)
Even something like this:
(Which is actually a "adjacency matrix memory map" a visualization, where 1 0 is bordered infinity)
Graph theory is now what the problem is solved: there is not need to study "map" (in the traditional sense) of "map" (graph theory sense) of a set of knowledge. The concept can be roughly understood, more important is the content.