我目前正在使用unicode-mathSTIX Two Math 字体和 XeLaTeX。我发现不可见分隔符无法正确呈现：
代码如下：
\[h(x)=\begin{cases}
1, & \mbox{if } \exists n\in\mathbb{N}_+\text{ such that }x=\nicefrac{1}{n} \\
0, & \mbox{otherwise}
\end{cases}.\]
\[h(x)=\left\{
\begin{array}{ll}
1, & \mbox{if } \exists n\in\mathbb{N}_+\text{ such that }x=\nicefrac{1}{n} \\
0, & \mbox{otherwise}
\end{array}\right..
\]
我该如何去掉那个问号？
谢谢。
- 更新
以下是完整的代码摘录。
\documentclass{scrartcl}
\usepackage{amsmath}
\usepackage{fontspec}
\setmainfont {STIX2Text-Regular}[
Extension=.otf,
BoldFont=STIX2Text-Bold,
ItalicFont=STIX2Text-Italic,
BoldItalicFont=STIX2Text-BoldItalic,
]
\setmonofont{Courier Prime Code.ttf}
\usepackage{unicode-math}
\setmathfont{STIX2Math.otf}[StylisticSet=02, StylisticSet=08]
\setmathfont{STIX2Math.otf}[range={\oplus, \otimes}, StylisticSet=16]
%\usepackage{physics}
\usepackage{cabin}
\usepackage{dutchcal}
\usepackage{ulem}
\usepackage{leftidx}
\usepackage{physics}
\usepackage{mattens}
\usepackage[e]{esvect}
\usepackage{units}
\usepackage{minted}
\title{STIX Two Test}
\begin{document}
\maketitle
\[h(x)=\begin{cases}
1, & \mbox{if } \exists n\in\mathbb{N}_+\text{ such that
}x=\nicefrac{1}{n} \\
0, & \mbox{otherwise}
\end{cases}.\]
\[
h(x)=\left\{
\begin{array}{ll}
1, & \mbox{if } \exists n\in\mathbb{N}_+\text{ such that }x=\nicefrac{1}{n} \\
0, & \mbox{otherwise}
\end{array}\right..
\]
\end{document}
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