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themes/next/layout/_third-party/math/mathjax.swig

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+<script type="text/x-mathjax-config">
+  {% if theme.math.mathjax.mhchem %}
+    MathJax.Ajax.config.path['mhchem'] = '{{ theme.math.mathjax.mhchem }}';
+  {% endif %}
+
+  MathJax.Hub.Config({
+    tex2jax: {
+      inlineMath: [ ['$', '$'], ['\\(', '\\)'] ],
+      processEscapes: true,
+      skipTags: ['script', 'noscript', 'style', 'textarea', 'pre', 'code']
+    },
+    TeX: {
+      {% if theme.math.mathjax.mhchem %}
+        extensions: ['[mhchem]/mhchem.js'],
+      {% endif %}
+      equationNumbers: {
+        autoNumber: 'AMS'
+      }
+    }
+  });
+  MathJax.Hub.Register.StartupHook('TeX Jax Ready', function() {
+    MathJax.InputJax.TeX.prefilterHooks.Add(function(data) {
+      if (data.display) {
+        var next = data.script.nextSibling;
+        while (next && next.nodeName.toLowerCase() === '#text') { next = next.nextSibling }
+        if (next && next.nodeName.toLowerCase() === 'br') { next.parentNode.removeChild(next) }
+      }
+    });
+  });
+</script>
+
+<script type="text/x-mathjax-config">
+  MathJax.Hub.Queue(function() {
+    var all = MathJax.Hub.getAllJax(), i;
+    for (i = 0; i < all.length; i += 1) {
+      document.getElementById(all[i].inputID + '-Frame').parentNode.className += ' has-jax';
+    }
+  });
+</script>
+<script src="{{ theme.math.mathjax.cdn }}"></script>