I need the symbol "dot over dash" or "dot over minus", but I am unable to find it in a list of LaTeX symbols. When composing it via \dot{-}
, the dot is so hight, that it looks weired. It should look like this:
Did I overlook the symbol in the list or how can I compose it?
\mathbin{\scriptstyle\dot{\smash{\textstyle-}}}
. One can define a macro working also in sub/superscripts with\newcommand\dotminus{\mathbin{\mathchoice{\scriptstyle\dodotminus\displaystyle}{\scriptstyle\dodotminus\textstyle}{\scriptscriptstyle\dodotminus\scriptstyle}{\scriptscriptstyle\dodotminus\scriptscriptstyle}}} \newcommand\dodotminus[1]{\dot{\smash{#1-}}}
.\mathbin{\dot-}
looks awful in LaTeX, it works just perfect in Mathjax, strangely enough.