Escaping
What it is
Making * _ # and friends show up as themselves instead of being read as syntax.
How to write it
Put a backslash in front:
Which characters need it
\ ` * _ {} [] () # + - . ! |
No need to memorise them: escape only where the character would really be read as syntax in that position. A lone * in 5 * 3 is not italic, and the dot in 3.14 does not start a list.
The easier way
For a short run, wrap it in inline code — nothing inside needs escaping:
Traps
- Inside a table a literal pipe must be
\|, otherwise it splits the column — see Tables - A backslash at the end of a line is a hard line break, not an escape