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如何在不等号下方直接放置波浪号(即直接在 < 或 > 下方)?
答案1
\documentclass{article}
\usepackage{amssymb}
\begin{document}
The package \verb|amssymb| provides following:
\verb|\lesssim| $\rightarrow \quad \lesssim$
\verb|\gtrsim| $\rightarrow \quad \gtrsim$
\verb|\lessapprox| $\rightarrow \quad \lessapprox$
\verb|\gtrapprox| $\rightarrow \quad \gtrapprox$
\end{document}