{{- if not (.Page.Store.Get "katex") -}}
  <!-- Include katex only first time -->
  {{- /* remove whitespaces */ -}}
  <link rel="stylesheet" href="{{ "katex/katex.min.css" | relURL }}" />
  {{- /* remove whitespaces */ -}}
  <script defer src="{{ "katex/katex.min.js" | relURL }}"></script>
  {{- with resources.Get "katex.json" -}}
  <script defer src="{{ "katex/auto-render.min.js" | relURL }}" onload="renderMathInElement(document.body, {{ . | minify }});"></script>
  {{- end -}}
  {{- .Page.Store.Set "katex" true -}}
{{- end -}}

{{- if .Inner -}}
<span>
  {{- if .Get "display" -}}
  \[ {{ .Inner }} \]
  {{- else -}}
  \( {{ .Inner }} \)
  {{- end -}}
</span>
{{- end -}}