It is possible that some of you might know the answer to this... but I suspect the answer is that you can't currently do this. If you know this to be true a confirmation and any further information you have would be handy.
As explained at www.w3.org/TR/MathML2/chapter6.html#chars.BMP-SMP
a fair number of quite important unicode symbols for mathematics are in plane 1/Secondary Multilingual Plane
. It is also noted there that "support for these Mathematical Alphanumeric Symbol characters is not likely to be widespread until after public fonts covering the characters adopted for mathematics are available. " If you look at the wikipedia page for the Mathematical Alphanumeric Symbol
you will see that in your browser you can't see a lot of them.
I am particularly interested in Linux text editor and terminal support although news on firefox (linux) and windows support is also useful if you have it. I have done some searching but am somewhat confused and all I seem to find is windows people asking similar questions and getting slightly better but still not that great answers and other confused people. I intend to keep trying to work out what is going on but any information you have is helpful. Maybe you are better at using google than me.
As far as I can make out there is no free font available (for linux? at all??) which has all of the plane 1 Mathematical Alphanumeric Symbols but that the Stix font might well do when it is released any time soon
(30 days from 29th Sept in I hope 2009... otherwise this clearly isn't happening). However, being a bit thick on fonts I don't really understand if the Stix fonts will work in Linux (though some sites seem to claim that this is one of the aims of the project). I also can't tell if the entire Mathematical Alphanumeric Symbols is there because the chart loads and then kicks you off with a message about the Beta test (which is long over). Perhaps you beta tested? Or know someone who did?
Now, I understand that I need a font... I assume I also need a text editor/terminal that can display unicode and I have those but will they work directly with plane 1 out the box or am I still then waiting on something?