Force spacing

A double line break is a paragraph break in MarkDown.

spacing between lines

SpacingParabreak
SpacingLinebreak

spaces between characters

SpacingNonbreakspace
SpacingThinspace

(Sometimes inserting a single linebreak before and after a complex expression makes the parsing/editing more reliable, without affecting the parsed output.)

Samples, parsed

A

B
A
B
A   B
A   B