Thanks David, I agree with you, middle alignment should be set by default. Regards.

------------------------------------------------- Julio Rojas jcredbe...@gmail.com On Tue, May 13, 2014 at 5:02 PM, David L. Johnson <d...@lehigh.edu> wrote: > On 05/13/2014 04:48 PM, Julio Rojas wrote: > > > As you can see, there is "[t]" in the array that is generating the > problem, i.e., the array was top aligned. Are matrices in Lyx 2.1.0 set up > by default on top alignment instead of middle aligment? I don't really > remember changing this aligment. > > The popup window does seem to come up with top-alignment as the default. > Middle would be better, I think. > > > > On Tue, May 13, 2014 at 4:41 PM, Julio Rojas <jcredbe...@gmail.com> wrote: > >> Dear all, >> >> I am on Ubuntu 12.02 with Lyx 2.1.0. I wanted to make set the binomial >> coefficient for a binomial distribution, so I did as I alway did, i.e., >> insert the parenthesis in my equation and a size 2 column vector in the >> parenthesis. >> > > I was going to respond to this part anyway. For binomial coefficients, > use (gee) \binom instead. The parentheses are tighter around the numbers, > and it looks more like a binomial coefficient. Easier as well. > > > -- > > David L. Johnson > Department of Mathematics > Lehigh University > >