如何调整文本部分中数学表达式的对齐方式？例如 argmax

Question

我使用以下定义来生成argmax运算符：

\DeclareMathOperator*{\argmax}{\arg\!\max}

但是问题是当我在某个部分使用它时，由于argmin下一行下方的书面参数以异常距离出现，因此存在某些文本，以保持与 argmin 下的参数的距离。但是当我使用\frac例如这次时，比例会自行调整以不与下一行重叠。我如何更改上述命令以使其表现得像frac？

例子：

\documentclass{article}
\usepackage{amsmath}

\DeclareMathOperator*{\argmax}{\arg\!\max}

\begin{document}
  This is a test. This is a test. $\argmax\limits_{x}{x^2}$ This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test.
\end{document}

带输出

相反的是：

\documentclass{article}
\usepackage{amsmath}

\DeclareMathOperator*{\argmax}{\arg\!\max}

\begin{document}
This is a test. This is a test. $\frac{x}{x^2}$ This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test.
\end{document}

带输出

Answer 1

据我了解，您想手动校正垂直间距，使其更接近此值，而无需操作员。恐怕结果不会很漂亮。此类解决方案的一个例子如下（手动选择垂直间距）：

\documentclass{article}
\usepackage{amsmath}

%\DeclareMathOperator*{\argmax}{\arg\!\max}
\DeclareMathOperator*{\argmax}{argmax}



\begin{document}


  This is a test. This is a test. $\argmax\limits_{\raise3pt\hbox{$\scriptstyle x$}}{x^2}$ \vspace{-5pt}
 This is a test. This is a test. This is a test. This is a test. This is a test.  This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test. This is a test.
\end{document}