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              <div class="container">
<h1>MathJax Font Check</h1>
<div id="none">
You do not appear to have the MathJax fonts installed. MathJax should 
work for you using web-based fonts. You can download the fonts from the <a href="https://cdn.mathjax.org/mathjax/contrib/MathJax-TeX-fonts-otf.zip">MathJax CDN</a>.
</div>
<div id="old">
You have old versions of the MathJax fonts installed on your system.  
Version 2.6 of MathJax introduced new versions for use with the new 
CommonHTML output format.  The old versions may cause positioning problems 
in some equations and some browsers, so you should either remove the old 
versions or update to new ones. The new fonts can be found on the 
<a href="https://cdn.mathjax.org/mathjax/contrib/MathJax-TeX-fonts-otf.zip">MathJax CDN</a>.
</div>
<div id="new">
Congratulations, you have the new versions of the MathJax fonts installed on your system. These should work fine with any version of MathJax.
</div>
</div>
            
          
!
            
              #none { background-color: #d9edf7; display:none;}
#old { background-color: #f2dede; display:none;}
#new { background-color: #dff0d8; display:none;}

*, ::after, ::before {
  box-sizing: border-box;
}
html {
  font-family: sans-serif;
  font-size: 10px;
  -webkit-tap-highlight-color: transparent;
}
body {
  margin: 0px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.42857143;
  color: rgb(51, 51, 51);
  background-color: rgb(255, 255, 255);
  padding-top: 50px;
  padding-bottom: 20px;
}
.container{
  margin-right: auto;
  margin-left: auto;
  width: 80vw;
}
a {
  color: rgb(22, 149, 56);
  text-decoration: none;
  background-color: transparent;
}
a, a:focus, a:hover {
  text-decoration: none;
}
h1 {
  margin: 0.67em 0px;
  font-family: inherit;
  font-weight: 500;
  line-height: 1.1;
  color: inherit;
  margin-top: 20px;
  margin-bottom: 10px;
  font-size: 24px;
}
            
          
!
            
              (function() {
  var styles = [
    "@font-face {",
    "  font-family: 'MJX_Blank';",
    "  src: url('data:application/font-woff;charset=utf-8;base64,d09GRk9UVE8AAAWgAAoAAAAACiwAAA" +
    "AAAAAAAAAAAAAAAAAAAAAAAAAAAABDRkYgAAAEwAAAALYAAADUCJjHHkZGVE0AAAWEAAAAHAAAABxlL/zNT1MvMgAA" +
    "AUAAAABEAAAAYGbGV8BjbWFwAAAEbAAAAEAAAAFK3/AT+WhlYWQAAAD0AAAAKgAAADYDEJDLaGhlYQAAASAAAAAXAA" +
    "AAJAMh/ztobXR4AAAFeAAAAAoAAAAKAAAAAG1heHAAAAE4AAAABgAAAAYAA1AAbmFtZQAAAYQAAALlAAAGUWw8k0Jw" +
    "b3N0AAAErAAAABMAAAAg/4YAMnjaY2BkYGAA4uClEqHx/DZfGbiZXwBFGC7+VP+MTEMBBwMTiAIAL7oJzwAAeNpjYG" +
    "RgYFb4b8GAAIwMqIAJACjUAV8AAABQAAADAAB42mNgYfzCOIGBlYGBqYtpDwMDQw+EZnzAYMjIxIAKGAWQOL5eEQoM" +
    "BxgU3v9nVvhvwcDArMBwAqQGrkABCBkBi1gMOnjarVTLTttAFL2GBNS0iWDRLpAq3U0lSIPzUFmQIqTwiBQUQJCIZZ" +
    "FxhmTAsSN7ksCmX9APqPoFXXbZVdVFv6LLLrrvH/R4PBRS+lAfsTxzfOfec8/cOxMiemDlyKLkt0Rtgy3K0iuDp2iW" +
    "3ho8TY+sewan6L71zOA03bVeGDwD+weDs/Rl+p3BOVpIfTZ4jrLphwbP02z6KZit1B18HeosMbZogZ4bPIXo1wZP0w" +
    "69NzhFeaticBp7UQbPwP7S4Kz1yfpocI6epN4YPEcLacvgecqlH9MmBTSgSwpJUpd6pIhpkVzUhalCJSrTClAbKwLz" +
    "Ljnw6EGNQxf4jqN9ijCGsEsaUp9oMxhchrLbU7zoLnGlVF7hdk/wrqN6O84FbwZ+FIRKDuE6yXdMG+QB+XSOpcT9eM" +
    "Nz/PO4RgL6hno9xKfoDj0HoK4VKD2H8BBatw3lTNVbim9mWP6esx74qh6EXcEVu8RVnlCw/C3jHzD+hOEIXiGqJrV2" +
    "Ro1tvHQkwkgGPpft8v/I8rvOlmgVXEmPS1SAdQu8kfaOVbXgK2HxMQu93tDY1jxrNNaPjY4nSs+0Utv0YR15CpSBh9" +
    "SrrFVHeucjjB1YrnrHtIfYvu5dHriG3W8D2YjP6LMnEXnTvwV0CjTWFYjjEg8Ps6s1RybHELijs7LWIXR0g5qY91Ef" +
    "ofd6zdycYIh3/eNu2RPKJvMyVI3wSt2hE4yx7boSjs5YowONFc5pRvdHQU+VingisMV9G8AWIVekua5qW4TyOpTeum" +
    "ml1WVct1KBt0Qkuz63XCl8VxS44bs2L66Nx2O7j9Ny5lzYOOjrS4XMWKoeH4pIhCPR4fgK8J7TF5zfq+1u5+1Mpt2T" +
    "UWJvBadq7ISCYfCkK/wIEUO/I0JWuN+tRpP3B8JPnJuJQ4FvnGo7ITOx7Iwc6TknnmAtwuF67YAdVc30lBpUi8XIDe" +
    "VARXYkvVhtcb+OLf9VnX5F+M9/QV8B1iA8ewAAAHjaY2BgYGaAYBkGRgYQcAHyGMF8FgYNIM0GpBkZmBgU3v///x/I" +
    "B9P/HwowQ9UDASMbA4KDAxCSH+oAAOZaCtZ42mNgZgCD/80MRgxYAAAoRAG4AHjaY2RgYWFgZGQU800syfBKrIh3yk" +
    "nMy9YNSk0vzUksYmBkYmBk0PghwPBDhvGHLNMPOeYfEizdQMAqw7CWX4aBQUCGYZOgDIOEDMMeIQYWkGoOBkMGN4bg" +
    "0rxMVzc3N+f8gsqizPSMEgWNZE0FIwNDU4WQjFQFqG0Kzvl5xflFJZmluVjtRxFkAAJGxnYGZkZGJmYWPj6+bpFuUT" +
    "ku5mn2PJzdPFx7ufZyy3Gx/ecRAgDUnjdeAAAAAAAAAAAAAAAAAAAAAAABAAAAAMw9os8AAAAAxvkyTwAAAADR+Seu" +
    "') format('woff')",
    "}",
    ".MJX-CHTML-font-test {",
    "  font-family: MathJax_Size1,MathJax_Size1-Regular, MJX_Blank;",
    "  font-size: 300%;",
    "  position:absolute; top:0; left:0; visibility:hidden;",
    "}"
  ].join("\n");

  var sheet = document.createElement("style");
  sheet.type = "text/css";
  var head = document.head || document.getElementsByTagName("head")[0] || document.firstChild;
  head.appendChild(sheet);
  if (sheet.styleSheet && typeof(sheet.styleSheet.cssText) !== 'undefined') {
    sheet.styleSheet.cssText = styles;
  } else {
    sheet.appendChild(document.createTextNode(styles));
  }

  var div1 = document.createElement("div");
  div1.className = "MJX-CHTML-font-test";
  div1.innerHTML = "\uEFFF";

  var div2 = document.createElement("div");
  div2.className = "MJX-CHTML-font-test";
  div2.innerHTML = "\uEFFE";

  var ONLOAD = function() {
    document.body.appendChild(div1);
    document.body.appendChild(div2);
    setTimeout(function() {
      var w1 = div1.offsetWidth,
        w2 = div2.offsetWidth;
      var version = (w1 === 0 ? 0 : Math.floor(w2 / w1 + 1.5) / 2);
      div1.parentNode.removeChild(div1);
      div2.parentNode.removeChild(div2);
      sheet.parentNode.removeChild(sheet);
      console.log("MathJax font version = " + version);
      document.getElementById(version ? (version < 3 ? "old" : "new") : "none").style.display = "block";
    }, 50);
  };

  if (window.addEventListener) window.addEventListener("load", ONLOAD, false);
  else if (window.attachEvent) window.attachEvent("onload", ONLOAD);
})();
            
          
!
999px
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