becherini yvonne Gruppo II wrote:
>
> > > can I put a left bracket on a set of subequations?
> >
> > numbered or unnumbered subequations?
> >
> numbered.
>
> I must also number some equations in a chapter/section/exercise:
> ..... (1)
> ..... (2)
> ..... (3)
> but I don't know how to do that.
>
> Which is the correspondent command of \eqno, (if it exists)?
have a look at
http://www.educat.hu-berlin.de/~voss/lyx/mathmode.html#subequation
when you open a mathbox with alt-m-d hit ctrl-enter, than
you'll get a new line, which you can number with alt-m-n
for more information look at
http://www.perce.de/lyx/equations.pdf
Herbert
--
http://www.educat.hu-berlin.de/~voss/lyx/
