Vertical lines in the middle of a matrix

[antz]

Hello

Is there a way of adding a vertical line, bordering the whole of column, to some point within a matrix.
As a work around i've been diving everything up into two or more matrices and using the mline command, however in the example below, because one of the elements is larger, so the rows are no longer in line.

Code: Select all

left [matrix{
1 # matrix {2 # 3} overbrace "stuff" # 4 # 5 ##
6 # matrix {7 # 8} # 9 # 10
}
mline stack{11 # 12} mline matrix{13 ## 14}
right ]

i.e. in that example, 11 and 13 will be slightly above 1, 2, 3, 4, 5

*Also and this is really an additional question but is there a way of adding an overbrace like i have done in that example but without the internal matrix*

Many Thanks

Anthony

[RGB]

Something like this?:

Code: Select all

left[
stack{1 # 6}
right none ~
matrix{2 # 3 ## 7 # 8} overbrace "stuff"
~ left none
matrix{4 # 5 ## 9 # 10}
mline
stack{11 # 12}
right rline
left none
stack{13 # 14}
right]

[acknak]

Here's a variation on RGB's approach that seems to space a little more evenly...

• left [ `
   stack{ 1 #  6} ~ right none
   {
   stack{ 2 #  7} ~
   stack{ 3 #  8}
   } overbrace "stuff"
   left none ~
   stack{ 4 #  9} ~
   stack{ 5 # 10} ` mline `
   stack{11 # 12} ` mline `
   stack{13 # 14} `
  right ]