I would like to define the command A\!\!_B\!C
in a math mode as a macros, and I am using the following:
\newcommand{\cmp}[3]{#1\!\!_#2\!#3}
Unfortunately I get an error that there are {}
missing. Any hint is appreciated.
Is there any possibility to get a Mathematica-like syntax with only one argument, splitting it a the comma?
\newcommand{\cmp}{...}
with a backslash.