Vrftsjtryk

I wish to write the following block matrix in LaTex.

I have been trying a bunch of stuff, but none of it seems to work. In particular, I tried the following:

begin{bmatrix}

0 & -1&        &         &          &        & 0    &         &       &         &\

1 & 0 &        &         &          &        &      &         &       &         &\

  &   & cdot  &         &          &        &      &         &       &         &\

  &   &        & cdot   &          &        &      &         &       &         &\

  &   &        &         & cdot    &        &      &         &       &         &\

  &   &        &         &          & 0      & 1    &         &       &         &\

  &   &        &         &          &-1      & 0    &         &       &         &\

  &   &        &         &          &        &      & cdot  &        &        &\

  &   &        &         &          &        &      &         & cdot &        &  \ 

  &   &        &         &          &        &      &         &        &  cdot & \

0 &   &        &         &          &        &      &         &        &         &  0\ 

end{bmatrix}

But this is pretty ugly and so any suggestions will be much appreciated.

Perhaps

$left(begin{array}{cccccc}

left[begin{array}{cc}

0 & 1\

-1 & 0

end{array}right] &  &  &  &  & 0\

 & ddots\

 &  & left[begin{array}{cc}

0 & 1\

-1 & 0

end{array}right]\

 &  &  & 0\

 &  &  &  & ddots\

0 &  &  &  &  & 0

end{array}right)$  

Here there is my proposal as the original picture using bmatx command that replace a boxed matrix.

documentclass{article}

usepackage{mathtools}

newcommand{bmatx}{boxed{begin{matrix} 0&  1  \ -1&  0end{matrix}}}



begin{document}

[

begin{pmatrix}

, bmatx&  &  &  &  & & & 0 \ 

 &  ddots&  &  &  & \ 

 &  &  bmatx &  &  & & \ 

 &  &  &  ddots&  & &\ 

 &  &  &  & 0 & &\ 

 &  &  &  &  &  & ddots\ 

0 &  &  &  &  &  & & 0 

end{pmatrix}

]



end{document}

The best code is provided thanks to the precious comment of @Bernard.

Here's another solution. It uses a pmatrix environment for the overall matrix and a custom macro called blockmat for the 2x2 inner matrices.

documentclass{article}

usepackage{array,amsmath}

newcommandblockmat{%

   begin{array}{|@{,}rr@{,}|}

     hline 0 & 1^{mathstrut} \ -1 & 0 \ hline

   end{array}}

begin{document}

[

begin{pmatrix}

blockmat &        &           &   &        & 0 \

          & ddots &           &   &        &   \

          &        & blockmat &   &        &   \

          &        &           & 0 &        &   \

          &        &           &   & ddots &   \

0         &        &           &   &        & 0 \  

end{pmatrix}

]

end{document}

Just for the fun of it! :-)

documentclass{article}

usepackage{amsmath,array}



begin{document}



[

begin{pmatrix}

newcommand{lr}[1]{multicolumn{1}{|c}{#1}}

newcommand{rr}[1]{multicolumn{1}{c|}{#1}}

;

begin{array}{@{}*{10}{c}@{}}

cline{1-2}

lr{0} & rr{1} &&&&&&&& raisebox{-1em}[0pt][0pt]{$0$}\

lr{-1} & rr{0} \

cline{1-2}

&& ddots \

cline{4-5}

&&& lr{0} & rr{1} \

&&& lr{-1} & rr{0} \

cline{4-5}

&&&&& 0 \[-1ex]

&&&&&& ddots \

&&&&&&& 0 \[-1ex]

&&&&&&&& ddots \

multicolumn{2}{c}{0} &&&&&&&& 0

end{array}

;;

end{pmatrix}

]



end{document}