[dk-tug] markering af punkt i en tikz matrix

Lars Madsen <[email protected]>
Newsgroups gmane.comp.tex.danish
Message-ID <[email protected]>
Se nedenstående MWE

Jeg ville gerne have at den cirkel om -1, ikke forstyrrer resten af matricen, altså at -2's placering er den samme u anset hvad og at cirklen ikke påvirker resten af matricen.

Nogen der har et forslag?


\documentclass[a4paper]{memoir}
\usepackage{tikz}
\usetikzlibrary{matrix}
\tikzstyle{daleifs matrix of math nodes}=[%
  matrix of nodes,
  nodes={%
   execute at begin node=$,%
   execute at end node=$,%
   anchor=east,
  }%
]
\tikzstyle{pivot marker}=[
shape=circle,
draw,
inner sep=2pt,
]

\begin{document}

\begin{tikzpicture}[baseline=(current  bounding  box.center)]
  \matrix (M) [daleifs matrix of math nodes] {
    5  & 4  & 3  & 0  \\
    -2 & -3 & -1 & 5  \\
    -4 & -1 & -2 & 11 \\
    -3 & -4 & |[pivot marker]|-2 & 8  \\
    1  & 0  & 0  & 0  \\
    0  & 1  & 0  & 0  \\
    0  & 0  & 1  & 0  \\
  };
\end{tikzpicture}
\end{document}





/Lars Madsen
Institut for Matematik / Department of Mathematics
Aarhus Universitet / Aarhus University
Mere info: http://au.dk/daleif@imf / More information: http://au.dk/en/daleif@imf
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