markdown-it-mathjax3 is a plugin for the popular Markdown parser, markdown-it, enabling the rendering of mathematical formulas using MathJax v3. It seamlessly integrates LaTeX equations within your Markdown documents, supporting both inline ($...$) and display ($$...$$) math. This plugin allows for clear and beautiful mathematical expressions directly in your Markdown content, ideal for scientific papers, technical documentation, and educational materials. Simple to use and highly configurable, it enhances the functionality of markdown-it for math-heavy projects.