-----Original Message-----
From: lyx-users@lists.lyx.org [mailto:lyx-users@lists.lyx.org] On Behalf Of
Jean-Marc Lasgouttes
Sent: fredag 24. februar 2017 16.35
To: lyx-users@lists.lyx.org
Subject: Re: new operators in LyX?
Le 24/02/2017 à 16:07, Bernt Lie a écrit :
> I use LyX 2.2 on Win10.
>
> I need to typeset the signum function as an operator. I have tried to insert
> "\mathop{sgn}", but this gives "sgn" in italic, and not in roman as it should.
The right command is operatorname, I think. LyX is not yet able to display it
properly , though.
Jmarc
--
On "operatorname" -- this is somewhat fragile, I guess. I assume I have
AMSMath. If I do the following in math or display math...: type "\operatorname"
followed by an opening brace "{", LyX adds the closing brace. Then type the
operator name inside of the braces to have "\operatorname{sgn}" where the
cursor now is just after the "n" and before the closing brace. Then hit "space"
to move out of the brace. The math still looks like "\operatorname{sgn}".
However, if I go out of the math/display math *and* have set up LyX with math
preview, then it looks ok. But a slightest mistake causes an erroneous
preview...
-B
-B
