Which Stack Exchange sites use MathJax?

// edit below structure to indicate mathjax specific settings
// remove all spacees and/or - from the name of the site
// all lowercase
var specials = {
  "3dprinting": { mhchem: true },
  biology: { mhchem: true },
  chemistry: { mhchem: true },
  earthscience: { mhchem: true },
  mattermodeling: { mhchem: true },
  quantumcomputing: { mhchem: true },
  worldbuilding: { mhchem: true },
  electricalengineering: { delim: true },
  codegolf: { delim: true },
  codereview: { delim: true },
  gamedevelopment: { delim: true },
  photography: { delim: true },
  roleplayinggames: { delim: true },
 };

// no changes needed after this
function onload() {
  
  // error handling
  if (xhr.status !== 200) {
    document.getElementById('result').textContent = 'An error occurred: ' + xhr.status;
    return;
  }

  function filter(items) {
   var i, 
       sites =[];
   for(i=0; i < items.length; i++) {
     if (items[i].site_type === 'main_site' &&
         items[i].markdown_extensions &&
         items[i].markdown_extensions.indexOf('MathJax')>-1)
       {
          sites.push(items[i]);
       }
     }
    return sites; 
  }

  function getExtensions(sitename) {
    var sec = specials[sitename.toLowerCase().replace(' ','').replace('-','')],
        extra = '';
    if (sec !== undefined) {
      extra = '(with ';
      if (sec.mhchem) extra = extra + 'mhchem extension';
      if (sec.delim) extra = extra + '`\\$` delimiters';
      extra = extra + ')'
     }
     return extra;
  }

  function buildMarkdown(site, extra) {
    var content = [
      '1. [',
      site.name,
      '](',
      site.site_url.substr(site.site_url.indexOf(':') + 1),
      ') ',
      extra
    ], 
    pre = document.createElement('pre');
    pre.innerHTML = content.join('');
    return pre;
  }

  function processSites(sites) {
    var i,
      result = document.getElementById('result'),
      md = document.getElementById('md'),
      li, 
      extra;

    for(i = 0; i < sites.length; i = i + 1) {
        extra = getExtensions(sites[i].name);
        li = document.createElement('li');
        li.textContent = sites[i].name + ' ' + extra;
        result.appendChild(li);
        md.appendChild(
           buildMarkdown(sites[i], extra)
        );
    }
  }

  function sortSiteName(l, r) {
    return l.name<r.name?-1:1;
  }

  function process(txt) {
    var data =  JSON.parse(txt);
    processSites(filter(data.items).sort(sortSiteName));
  }
  
  process(xhr.responseText);

}

var xhr = new XMLHttpRequest();
xhr.open(
  'GET',
  'https://api.stackexchange.com/2.2/sites?pagesize=500&filter=!*L6SiaRiUSk*Z2zr');
xhr.addEventListener("load", onload);
xhr.send();

<ol id="result">
</ol>

<div id="md">
</div>