If we want to plot more scientific graphics and explain math as it should be using scientific notations and complex equations on the figures, we need support from the best.
Although matplotlib has support for math text rendering, the best support comes from the LaTeX community, proven in the task being used for many decades.
LaTeX is a high-quality typesetting system for the production of scientific and technical documentation, being a de facto standard for scientific typesetting or publication. It is a free software, available on the majority of desktop platforms used today as prepackages binary installation; hence, it is easy to install.
The basic syntax of LaTeX is similar to markup languages; so to produce satisfactory content, one would write focusing more on the structure than on the look and style. For example:
\documentclass{article}
\title{This here is a title of my document}
\author{Peter J. S. Smith}
\date{September 2013}
\begin{document}
\maketitle
...
