search for: greeek

...ing substitute(), bquote and expression() to join the leg.k.exp object in with the other characters, but it always falls over trying to parse the ":" character string instead of using it just as a string. I can see in the help for plot.math lots of ways of adding mathematical symbols and Greeek letters, but nothing for what I wish to do. There's a trick or two I'm missing. Apologies for the lack of specifics of what I've tried. That's on another computer inaccessible from this one, and that one doesn't have a usable email client. TIA -- ~.~.~.~.~.~.~.~.~.~.~.~.~...