text: window.MathJax = {
    extensions: ["tex2jax.js"],
    jax: ["input/TeX", "output/HTML-CSS"],
    tex2jax: {
      inlineMath: [ ["$","$"] ],
      displayMath: [ ["$$","$$"] ],
      processEscapes: true
    },
    imageFont: null,
    "HTML-CSS": { availableFonts: ["TeX"] },
    TeX: { extensions: ["AMSmath.js", "AMSsymbols.js"], equationNumbers: { autoNumber: "AMS" } }
  };
  