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
