Post Syntax and Features Guide

Meta
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This forum supports markdown, BBCode, and HTML to style posts. This list is abridged.

Text Formatting

Headers are linked in automatic table of contents. Please refrain from using the H1 header (single #) because this is already implemented for the post title, and used in SEO.

## Header 2

### Header 3

*italics*
** bold **
`inline code` shows as inline code

Hyperlinks

[This is a hyperlink](https://rad.cm/ty)
This is a hyperlink

Images

Drag images in or use the upload dialog. External images can also be referenced:
![Alternate text|50x50](upload://ynAdCZaPbSMFqYxbZxCJwkTcFBO.svg)

r_logo_light_shadow

Horizontal Line

--- three dashes with a blank line above creates a horizontal line

Code Blocks

```lang
Multi-line
Code Block
Replace “lang” with the file extension for syntax highlighting
```

// Shows 
const a = 3;
const b = 7;

Quote Blocks

Add a carrot before a line for a block quote.
> Block quote line 1
> Block quote line 2

Block quote line 1
Block quote line 2

Lists

  • Lists can begin with a * or -
    • Nest them with spaces
  1. Or number them
  2. Don’t forget the period .

Admonitions

Admonitions help highlight key information. Use BBCode’s wrap syntax with the supported list of options.

[wrap=type]
First line gets special formatting.
All other lines get normal formatting.
[/wrap]

type=warning

Warning
Use this to warn or lend caution.

type=download

Download
Use this to highlight an area where you might download something.

type=note

Note
Use this as a general note.

type=troubleshoot

Troubleshoot
Use this for problem/solution blocks, bugs, or other troubleshooting information.

Tables

Tables are created using this syntax:

| Header 1 | Header 2 |
| -------- | -------- |
| A | 1 |
| B | 2 |
| C | 3 |
Header 1 Header 2
A 1
B 2
C 3

tabletomarkdown.com helps with formatting tables from Excel/CSV.

Math

You can write inline x=3 $x=3$ and block equations using the MathJax syntax.

$$
\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}
$$
\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}

Citations

Citations link to a comment at the end of the post[1]. The same source can be reused [1:1].

Place the following anywhere in the document.

[^1]: Source 1
[^2]: Source 2
[^3]: Source 3

Use a source using the same inline syntax: [^1].

  1. Example citation source. ↩︎ ↩︎

2