Can I do mathematics using XML?

<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> Yes, if the document type you use provides for math. The mathematics-using community is developing software, and there is a MathML Recommendation at the W3C, which is a native XML application. It would also be possible to make XML fragments from other DTDs, such as the long-expired HTML3, the near-obsolete HTML Pro, or ISO 12083 Math, or OpenMath, or one of your own making. Browsers which display some math embedded in SGML already exist (eg DynaText, Panorama, Multidoc Pro).