The Obsidian Math+ plugin is a powerful tool for taking math notes quickly and efficiently in Obsidian. With this plugin, you can create math blocks using LaTeX or intuitive equation writing, and then render them with freeform annotations using Excalidraw. The plugin also allows you to customize the appearance of your math blocks, including colors, font sizes, and shortcuts. Additionally, you can save your drawings as SVG files and toggle live preview on and off. With its robust feature set and user-friendly interface, Obsidian Math+ is an excellent choice for anyone who needs to take complex mathematical notes.