Diagrams and math

Math

KaTeX draws math while the deck is generated. $...$ is inline and $$ ... $$ is a block.

Inline $\sqrt{3x-1}+(1+x)^2$

$ {1|2|all}
\begin{aligned}
\nabla \cdot \vec{E} &= \frac{\rho}{\varepsilon_0} \\
\nabla \cdot \vec{B} &= 0
\end{aligned}
$

{1|2|all} after the opening $$ steps through the formula's lines with clicks, with the same range syntax as code. The text of inline math follows Slidev's rule, so $5 and $10 stays text. KaTeX's CSS and fonts are only part of the build when a deck uses math. More in Math.

Mermaid

Mermaid diagrams are drawn in the browser, and the library is only loaded when a deck has one. Options come after the language:

```mermaid {theme:'neutral', scale:0.8}
graph TD
A[Text] --> B{Decision}
```

See Mermaid.

PlantUML

PlantUML is a picture made by a PlantUML server, so the browser needs the network.

```plantuml
@startuml
Alice -> Bob : Hello!
@enduml
```

See PlantUML.