\[ c^2 = a^2 + b^2 \text{,} \] 难道不比 \[ c^2 = a^2 + b^2 , \] 更好吗？

Question

我知道方程式末尾标点符号的问题已经在这里讨论过很多次了（例如这里）然而，据我所知，房间里的大象之一从未真正得到妥善解决：假设我输入以下内容：

\documentclass{article}

\usepackage{amsmath}

\begin{document}

Consider the Pythagorean identity
\begin{equation*}
    c^2 = a^2 + b^2,
\end{equation*}
and let us try to generalize it to non-right triangles.

\end{document}

然后等式末尾的逗号将从数学字体，而不是文本字体，文档中的所有内联逗号都将从该字体中取出。根据您的字体设置，这两个逗号可能看起来完全不同。

此外，假设这发生在定理环境中：

\documentclass{article}

\usepackage{amsmath,amsthm}

\newtheorem{theorem}{Theorem}

\begin{document}

Consider the Pythagorean identity
\begin{equation*}
    c^2 = a^2 + b^2,
\end{equation*}
and let us try to generalize it to non-right triangles.

\begin{theorem}
    If \( \gamma \)~denotes the angle of the triangle, we have
    \begin{equation*}
        c^2 = a^2 + b^2 - 2ab \cos(\gamma),
    \end{equation*}
    which generalizes the usual Pythagorean identity.
\end{theorem}

\end{document}

看，第一个逗号是斜体，而第二个不是！这真的是应该的样子吗？我不应该\text{,}在显示的数学中一致使用吗？

换句话说，以下不是更好的解决方案吗？

\documentclass{article}

\usepackage{amsmath,amsthm}

\newtheorem{theorem}{Theorem}

\begin{document}

Consider the Pythagorean identity
\begin{equation*}
    c^2 = a^2 + b^2 \text{,}
\end{equation*}
and let us try to generalize it to non-right triangles.

\begin{theorem}
    If \( \gamma \)~denotes the angle of the triangle, we have
    \begin{equation*}
        c^2 = a^2 + b^2 - 2ab \cos(\gamma)
        \text{,}
    \end{equation*}
    which generalizes the usual Pythagorean identity.
\end{theorem}

\end{document}