I need some notation for a matrix M which indicates that row r and column c is excluded. I tried
M_{(r,c)^-}
but the minus sign is too low and not close enough for this to be good notation.
\documentclass{article}
\usepackage{amsmath}
\begin{document}
\[
M_{(r,c)^-}
\]
\end{document}
Here are some proposals which I don't know how to do in LaTeX:
- Move the minus sign to be a little higher and closer to the close bracket and maybe a little smaller.
- Forget the minus sign but use a bracket which is not (), [] or {}.