New bye here, I have a situation to solve, with two different behaviors of the tilde. The first looks normal, within a regular text, something like:
... some text $\sim$A then some text ...
but in equation mode (or even inside the equation dollar signs within the text), there is a space between the tilde and the letter (see the screenshot below):
... some text $\sim{A}$ then some text ...
Is there a way to eliminate that space, in equation mode?
I need it for equations mode:
\[ \sim{A} = ... \]
If relevant, in the preamble I use the package lmodern
to use the CM10 font., plus some others dealing with equations: mathptmx, amssymb, amsmath, mathspec
and parse the text with xelatex.