Somebody needs to tell the
author(s) of this page that they can't make up their own variation-selector
sequences.
According to http://www.usefulcontent.org/docs/manuals/REC-MathML2-20010221/overview.html on this site, the contents are:
<< W3C Recommendation 21 February 2001 >>
I would think that anyone can properly make up their own variation-selector sequences for anything in a recomendation.
I have no idea what has since happened in respect to this recommendation.
Jim Allan
