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不确定为什么分数没有编译

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不确定为什么分数没有编译

我有一段文字如下：

They use a metric similar to my cost metric which is more lenient than
traditional population evaluation metrics, which is 
$$sim(x,g) = max\paren{1−\frac{\abs{x-g}}{\abs{g}},0}$$

但是这并没有编译成功。到底出了什么问题？

相关包和重新定义：

\usepackage{mathtools}
\usepackage{amsmath}% This is for maths. Note, fleqn makes it left aligned. [fleqn]
\usepackage{amssymb}
\DeclarePairedDelimiter{\paren}{(}{)}
% note: \lvert and \rvert look like | and |, but are spaced as
% delimiters,so they'll look a little nicer
\DeclarePairedDelimiter{\abs}{\lvert}{\rvert}
\DeclareMathOperator*{\argmin}{arg\,min}

该方程应如下所示：https://cl.ly/0l0g3B1r3E44

答案1

对我来说，它编译得很好，但您在数学公式中使用了一些类似于减号的符号，而不是减号本身，导致减号被删除。此外，不要使用$$ ... $$，ams 包由 加载mathtools，在数学中使用直立（罗马）表示“单词”，并调整括号大小。

\documentclass{article}
\usepackage{mathtools}
%\usepackage{amsmath}% This is for maths. Note, fleqn makes it left aligned. [fleqn]
%\usepackage{amssymb}
\DeclarePairedDelimiter{\paren}{(}{)}
% note: \lvert and \rvert look like | and |, but are spaced as
% delimiters,so they'll look a little nicer
\DeclarePairedDelimiter{\abs}{\lvert}{\rvert}
%\DeclareMathOperator*{\argmin}{arg\,min}
\DeclareMathOperator{\simo}{sim}

\begin{document}
They use a metric similar to my cost metric which is more lenient than traditional population evaluation metrics, which is 
\begin{equation}
 \simo(x,g) = \max\paren[\bigg]{1-\frac{\abs{x-g}}{\abs{g}},0}
\end{equation}

\end{document}

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