A number of non-letter characters are used in mathematical operations ( note this isn't exhaustive, and doesn't list uncommon mathematical operators):
- Addition:
+'plus', 'plus sign'. See here. Note the different use from action code concatenation. - Subtraction:
-'minus', 'minus sign' or 'hyphen'. Note this is discrete from the typographic en-dash '–' (⌥+-) and em-dash '—' (⌥+⇧+-). See here. - Multiplication:
*'asterisk'. See here. Note that in note $Text the asterisk is also used for generating (export) 'quick lists'. - Division:
/'forward slash' or 'solidus'. See here. Note the separate use in Tinderbox path values. - Equals:
='equals sign'. Note this is also used for assigning values in action code expressions. - Less than:
<'less than', 'left angle bracket'. See here. - Less than or equal to:
<=. See here. - Greater than:
>'greater than', 'more than', 'right angle bracket'. See here. - Greater than or equal to:
>=. See here. - Increment:
+=. See here. - Decrement:
-=. See here.
In addition there are logical operators using single or double characters: