>From ra...@inputplus.co.uk Tue Jul 29 15:42:56 2014 > >Hi Ted, > >> When you say 'I need "minus plus" as well as "plus minus", do you >> mean that you also need a symbol consisting of a "-" sign above >> a "+" sign? > >Yes. (I didn't spot the distinction.) > > $ curl -sS > http://partners.adobe.com/public/developer/en/opentype/glyphlist.txt | > > egrep '(plus|minus){2}' > minusplus;2213 > plusminus;00B1 > $ > >http://lists.gnu.org/archive/html/groff-commit/2002-12/msg00061.html is >what I think Werner was mentioning; minusplus being replaced with >uni2213. > >Cheers, Ralph. >
Having both symbols is useful. For example I want to say that a = +- i b = -+ i The important consequence is that although the actual signs might not be known, they must be opposite for a and b. Yes, I use Postscript output. As far as I understood from Werner's reply, this symbol is now available via the PS driver. Anton
