LaTeX Support

Inline Math

Use single dollar signs for inline equations:

The equation $E = mc^2$ describes mass-energy equivalence.

Display Math

Use double dollar signs for centered equations:

$$
\int_{0}^{\infty} e^{-x^2} dx = \frac{\sqrt{\pi}}{2}
$$

Supported Packages

Longhand supports common LaTeX packages out of the box:

• amsmath - Advanced math formatting
• amssymb - Mathematical symbols
• mathtools - Additional math tools
• physics - Physics notation shortcuts

Examples

Fractions and Roots

$$
\frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
$$

Matrices

$$
\begin{bmatrix}
a & b \\
c & d
\end{bmatrix}
$$

Summations and Products

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

Limits

$$
\lim_{x \to \infty} \frac{1}{x} = 0
$$

PDF Export

When exporting to PDF, LaTeX equations are rendered with full TeX quality. Longhand uses a local LaTeX installation if available, or falls back to MathJax rendering.

Troubleshooting

Equations not rendering

1. Check your LaTeX syntax for errors
2. Ensure dollar signs are properly matched
3. Look for error messages in the preview panel

Installing LaTeX

For best PDF output, install a LaTeX distribution:

• Windows: MiKTeX or TeX Live
• macOS: MacTeX
• Linux: TeX Live