Download and install Obsidian from the official website
Open Obsidian
Create a new vault
Choose a folder location for the vault
Name the vault
Open the vault
Create a new...
Use HTML: `text`
Enable a CSS snippet and add:
`.cm-underline, .underline { text-decoration: underline; }`
Use a plugin that supports underline formatting
In Live Preview or Reading View,...
Use LaTeX syntax in your note
Wrap inline equations with `$...$`
Wrap block equations with `$$...$$`
Enable MathJax rendering in Obsidian settings if needed
Use the equation editor...
