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:

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
- Or number them
- 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]
wrap=warning
Warning
Use this to warn or lend caution.
wrap=download
Download
Use this to highlight an area where you might download something.
wrap=note
Note
Use this as a general note.
wrap=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.
$$
\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}
$$
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]
.