Creating graphs

Graph theory, commonly employed in fields such as operations research and computer science, typically involves models and drawings primarily composed of repeated vertices, edges, and labels. There are LaTeX packages that help efficiently generate consistent graphs.

How to do it...

The tkz-graph package developed by Alain Matthes provides a user-friendly interface, various preconfigured styles, and extensive customization options. Let’s start with a minimal example:

1. Begin with any document class. In this case, I’ve opted for the standalone class to generate a compact PDF containing the desired image. Additionally, I’ve included an option for a border value to create a slight margin around the graph.

   \documentclass[border=10pt]{standalone}

2. Load the tkz-graph package:

   \usepackage{tkz-graph}

3. Define the distance between two vertices in cm:

   \SetGraphUnit{3}

4. Begin the document body:

   \begin{document}

5. Open a tikzpicture environment...