[Groff] EQN with more symbols

[Charles Chamberlain]

Hi,

I really like the idea behind eqn - it's much smaller and simpler than
LaTeX. I'd love to be able to use it for typesetting math, but I've found
that there are hardly any symbols that can be used with it.

Is there a way to use troff symbols or unicode characters within eqn?

The closest way I've found is by making this patch
<https://gist.github.com/Charlesetc/f10111cb7f639f8444d9b1b9f737517a> to
the compiler, which adds the ones that I need at the moment. Would anyone
else value having more symbols in eqn? I would be glad to put some time
into making this happen.

Charles