Math Equations

Stratum supports LaTeX math equations rendered with KaTeX — both inline and display mode.

Inline Math

Wrap LaTeX in $...$ for inline equations:

The quadratic formula is $x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$.

Renders as: The quadratic formula is $x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$.

Display Math

Use $$...$$ for centered display equations:

$$
E = mc^2
$$

Or larger expressions:

$$
\sum_{i=1}^{n} i = \frac{n(n+1)}{2}
$$

Math Editor Modal

For complex equations, use the math editor:

1. Type inline math $...$ or display math $$...$$
2. Click the math to open the editor
3. Edit the LaTeX in the text area
4. Live preview updates as you type
5. Press Ctrl+Enter to save or Escape to cancel

Symbol Palette

The math editor includes a Symbol Palette for common LaTeX symbols, organized by category:

Category	Examples
Greek	\alpha, \beta, \gamma, \pi
Operators	\sum, \prod, \int, \lim
Relations	\leq, \geq, \neq, \approx
Arrows	\to, \Rightarrow, \mapsto
Brackets	\{, \}, \langle, \rangle
Calculus	\partial, \nabla, \infty

Click a symbol to insert it at the cursor position in the LaTeX editor.

Examples

Linear algebra

$$
A = \begin{pmatrix}
a_{11} & a_{12} \\
a_{21} & a_{22}
\end{pmatrix}
$$

Calculus

$$
\frac{d}{dx} \int_{a}^{x} f(t) dt = f(x)
$$

Set theory

$$
A \cap B = \{x : x \in A \wedge x \in B\}
$$

Tips

• Use $...$ for inline math within paragraphs
• Use $$...$$ for standalone equations on their own line
• The symbol palette saves time — explore it when writing complex expressions
• Ctrl+Click on rendered math to edit directly