T*n
2 楼
\documentclass{article}
\usepackage{amsmath}
\makeatletter % required because of the use of \@tempdima
\newcommand*{\toplabel}[4]{%
\settowidth{\@tempdima}{\ensuremath{#1}}%
\makebox[\@tempdima][c]{%
\hss
\ensuremath{%
\makebox[0pt][r]{\ensuremath{\scriptstyle#2}}%
\scriptstyle{#3}%
\makebox[0pt][l]{\ensuremath{\scriptstyle#4}}%
}%
\hss
}%
}
\makeatother
\begin{document}
Here is one way of doing this.
\begin{equation}
%
\begin{array}{r} % matrix of q and q
\usepackage{amsmath}
\makeatletter % required because of the use of \@tempdima
\newcommand*{\toplabel}[4]{%
\settowidth{\@tempdima}{\ensuremath{#1}}%
\makebox[\@tempdima][c]{%
\hss
\ensuremath{%
\makebox[0pt][r]{\ensuremath{\scriptstyle#2}}%
\scriptstyle{#3}%
\makebox[0pt][l]{\ensuremath{\scriptstyle#4}}%
}%
\hss
}%
}
\makeatother
\begin{document}
Here is one way of doing this.
\begin{equation}
%
\begin{array}{r} % matrix of q and q
A*y
3 楼
Thank you so much!
【在 T*******n 的大作中提到】
: \documentclass{article}
: \usepackage{amsmath}
: \makeatletter % required because of the use of \@tempdima
: \newcommand*{\toplabel}[4]{%
: \settowidth{\@tempdima}{\ensuremath{#1}}%
: \makebox[\@tempdima][c]{%
: \hss
: \ensuremath{%
: \makebox[0pt][r]{\ensuremath{\scriptstyle#2}}%
: \scriptstyle{#3}%
【在 T*******n 的大作中提到】
: \documentclass{article}
: \usepackage{amsmath}
: \makeatletter % required because of the use of \@tempdima
: \newcommand*{\toplabel}[4]{%
: \settowidth{\@tempdima}{\ensuremath{#1}}%
: \makebox[\@tempdima][c]{%
: \hss
: \ensuremath{%
: \makebox[0pt][r]{\ensuremath{\scriptstyle#2}}%
: \scriptstyle{#3}%
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