In Markdown notes and blogs, math is still LaTeX under the hood: $...$ inline, $$...$$ for a block. Some renderers also take \(...\) / \[...\]—check yours.
High-frequency bits
- Fraction:
$\frac{a}{b}$ - Roots:
$\sqrt{x}$,$\sqrt[n]{x}$ - Indices:
$x_i^2$ - Greek:
$\alpha$,$\pi$ - Sum:
$\sum_{i=1}^{n} i$
Order that wastes less time
Get complex expressions right in the editor first, copy the LaTeX, then wrap with $ or $$. A few static-site generators are picky about backslash escaping—if preview looks wrong, check that before rewriting the math.
Finish the formula, then write the surrounding prose. Faster than fighting the renderer mid-sentence.