Re: left bracket on subequations

[becherini yvonne Gruppo II]

> > 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)?

Thanks a lot, Herbert


Yvonne