<html> <head> <meta charset="utf-8"> <title>music</title> <script src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML"> </script> <body> <p> 猫は猫 </p> <script type="math/tex; mode=display" id="e1"> \sum_{n=1}^\infty \frac{1}{n^2} = \frac{\pi^2}{6} \tag{1} </script> <script type="math/tex; mode=display" id="e2"> \sum_{n=1}^\infty \frac{1}{n^2} = \frac{\pi^2}{6} \tag{2} </script> </body> </html>
