📐 Math Formulas & Mermaid Diagrams
FlashNote provides rich engineering and academic publishing features, including KaTeX LaTeX math and an interactive Mermaid toolkit.
1. KaTeX Math Equations
Render mathematical notation with lightning-fast KaTeX:
- Inline Equations: Wrap expressions in single dollar signs, e.g.
$E = mc^2$; - Block Formulas: Type
$$and press Enter, or click the formula icon in the toolbar; - Equation Assistant: Quick insertion for Greek symbols, matrices, integrals, and arrows.
$$
f(x) = \frac{1}{\sqrt{2\pi\sigma^2}} e^{-\frac{(x-\mu)^2}{2\sigma^2}}
$$2. Interactive Mermaid Diagram Suite
Create flowcharts, sequence diagrams, and architecture maps using Mermaid:
- Supported Types: Flowcharts, Sequence, Class, State, Gantt, ER, and Git graphs;
- Canvas Panning: Hover over any diagram and drag freely with a grab cursor;
- Double-Click Reset: Double-click any blank area of the canvas to reset the view to center instantly;
- Full-Screen Lightbox: Click the magnifying glass icon to enter an immersive lightbox with 30%–350% smooth zooming;
- Retina Export: Export directly to vector SVG or crisp 2x Retina PNG with clean white padding;
- Crash Protection (Mermaid Sanitizer): Built-in syntax sanitizer auto-escapes special symbols, unmatched brackets, and keywords within node labels, preventing page-wide white-screen crashes from small typos.
[!TIP] Learn how to organize related notes into structured publications: