Mathematical Markup Language
  
  
  
  
<?xml version="1.0"?>
<html xmlns="http://www.w3.org/TR/REC-html40"
      xmlns:m="http://www.w3.org/TR/REC-MathML/"
>
<head>
<title>Fiat Lux</title>
<meta name="GENERATOR" content="amaya V1.3b" />
</head>
<body>
<P>
And God said,
</P>
<math>
  <m:mrow>
    <m:msub>
      <m:mi>δ</m:mi>
      <m:mi>α</m:mi>
    </m:msub>
    <m:msup>
      <m:mi>F</m:mi>
      <m:mi>αβ</m:mi>
    </m:msup>
    <m:mi></m:mi>
    <m:mo>=</m:mo>
    <m:mi></m:mi>
    <m:mfrac>
      <m:mrow>
        <m:mn>4</m:mn>
        <m:mi>π</m:mi>
      </m:mrow>
      <m:mi>c</m:mi>
    </m:mfrac>
    <m:mi></m:mi>
    <m:msup>
      <m:mi>J</m:mi>
      <m:mrow>
        <m:mi>β</m:mi>
        <m:mo></m:mo>
      </m:mrow>
    </m:msup>
  </m:mrow>
</math>
<P>
and there was light
</P>
</body>
</html>