# [NTG-context] underbrace under matrix

Hans Hagen j.hagen at freedom.nl
Fri Aug 5 17:27:33 CEST 2022

```On 8/5/2022 5:12 PM, Jethro Djan via ntg-context wrote:
> Hello Mikael,
>
> Thanks for your solution; it works just fine. I am not familiar with how
> you defined the pmatrix. Any links to manuals to learn such definitions?
> Also, this is the second thing I have tried to adapt from typesetting
> mathematics in plain TeX that didn’t work. I tried to draw commutative
> diagrams some time back using \diagram{…} which didn’t work(Got the idea
> from the book “A beginner’s book of TeX” pg. 161 by Seroul et al ).
>
> I guess what I am asking is that, what are the limits of what I can use
> out-of-the-box from Tex when typesetting mathematics? I have read
> Aditya’s ConTeXt-LaTeX tutorial which is fantastic. But the stuff
> illustrated there are quite limited. Are there any materials I can read
> on this?
there is an extensive manual coming but you need to give us some time
(as it goes hand-in-hand with updating / extending some of the math
machinery)

if you have specific wishes, just let is know and we'll have a look if
it can somehow fit in

Hans

-----------------------------------------------------------------