If you want to replicate this you have to:
- Paste the XML in the HTML code (i.e. NOT the WYSIWYG editor)
- Make sure that the first line of the XML includes a link to the MathML namespace as follows:
- I also like to use CSS to bump the font size – those super/subscripts can get very tiny.
All I can say is – Wow. I wish all my CMS systems played this well with MathML.
P.S. If you send me comments on this blog, please note that this text may possibly depart from standard academic English. Linguists can do that, especially in a blog.