I am writing a solution to a geometry exercise. I use $AB$ for the length of the line, or arc, from A to B. This results in a larger than desired spacing between the two characters. I can 'fix' it with $A\!B$ for every line or arc in my solution. (I am using both inline and display math.) Is there a 'nicer' or more global way of achieving this?
Inside math all letters are treated as individual math variables, so some predefined space will come by default, better to use
\mathit, where you want to treat as normal text with italic...
PS: Note that it is helpful if you provide a
MWE of what you tried, then will check the possibility to fix this issue in some other way...(if possible :-) )