[Tex/LaTex] How to create blocks matrix

matrices

An example: (right matrix)

I have not found proper answer searching. I need this one for Jordan's normal form

Best Answer

\documentclass{article}
\begin{document}
\[
  \left(\begin{array}{@{}ccc|cc@{}}
    a_{11} & a_{12} & a_{13} & b_{11} & b_{12} \\
    a_{21} & a_{22} & a_{23} & b_{21} & b_{22} \\\hline
    c_{11} & c_{12} & c_{13} & d_{11} & d_{12} \\
    c_{21} & c_{22} & c_{23} & d_{21} & d_{22} \\
    c_{31} & c_{32} & c_{33} & d_{31} & d_{32} 
  \end{array}\right)
\]
\end{document}

Related Solutions

[Tex/LaTex] TikZ marking several blocks in a matrix

Each block need its own pair of marks; I changed the definition of \tikzdrawbox; the first mandatory argument is a number used for the marks; the second optional argument allows you to pass options to \draw and the optional argument allows you to specify some "correction" to the block dimensions to prevent some borders to overlap:

\documentclass{article}
\usepackage{pgf}
\usepackage{tikz}
\usetikzlibrary{calc,fit,matrix,arrows,automata,positioning}

\newcommand\x{\times}
\newcommand\y{\colorbox{red}{$\times$}}
\newcommand\z{\colorbox{gray}{$\times$}}


\newcommand{\tikzmark}[1]{\tikz[overlay,remember picture] \node (#1) {};}
\newcommand{\tikzdrawbox}[3][(0pt,0pt)]{%
    \tikz[overlay,remember picture]{
    \draw[#3]
      ($(left#2)+(-0.3em,0.9em) + #1$) rectangle
      ($(right#2)+(0.2em,-0.4em) - #1$);}
}

\begin{document}

\begin{equation}\label{eq:blockedgivens}
  \left(\begin{array}{ccccccccccccccc}
    \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x \\
     0 & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x \\
     0 &  0 & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x \\
     0 &  0 &  0 & \tikzmark{left1}\x & \x & \x & \x & \tikzmark{left3}\x & \x & \x & \x & \x & \x & \x & \x \\
     0 &  0 &  0 & \z & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x \\
     0 &  0 &  0 &  0 & \z & \x & \x & \x & \x & \x & \x & \x & \x & \x & \x \\
     0 &  0 &  0 &  0 &  0 & \z & \x & \x & \x & \x & \x & \x & \x & \x & \x \\
     0 &  0 &  0 &  0 &  0 &  0 & \z & \tikzmark{left2} \x \tikzmark{right1} & \x & \x & \x & \tikzmark{left4} \x & \x & \x & \x \tikzmark{right3} \\
     0 &  0 &  0 &  0 &  0 &  0 &  0 & \z & \x & \x & \x & \x & \x & \x & \x \\
     0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 & \z & \x & \x & \x & \x & \x & \x \\
     0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 & \z & \x & \x & \x & \x & \x \\
     0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 & \z & \x \tikzmark{right2} & \x & \x & \x \tikzmark{right4} \\
     0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 & \z & \x & \x & \x \\
     0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 & \z & \x & \x \\
     0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 &  0 & \z & \x \\
  \end{array}\right)
  \tikzdrawbox{1}{thick,red}
  \tikzdrawbox{2}{thick,red}
  \tikzdrawbox[(-1pt,2pt)]{3}{thick,green}
  \tikzdrawbox[(-4pt,2pt)]{4}{thick,green}
\end{equation}

\end{document}

enter image description here

[Tex/LaTex] TikZ two-blocks matrix

Maybe I took it a little too literal.

\documentclass{article} 
\usepackage{emerald,tikz}
\usepackage[T1]{fontenc}

\usetikzlibrary{calc,decorations.pathmorphing,fit}

\makeatletter

\pgfdeclaredecoration{penciline}{initial}{
    \state{initial}[width=+\pgfdecoratedinputsegmentremainingdistance,auto corner on length=1mm,]{
        \pgfpathcurveto%
        {% From
            \pgfqpoint{\pgfdecoratedinputsegmentremainingdistance}
                            {\pgfdecorationsegmentamplitude}
        }
        {%  Control 1
        \pgfmathparse{0.1*rand}
        \pgfpointadd{\pgfqpoint{\pgfdecoratedinputsegmentremainingdistance}{0pt}}
                        {\pgfqpoint{-\pgfdecorationsegmentaspect\pgfdecoratedinputsegmentremainingdistance}%
                                        {\pgfmathresult\pgfdecorationsegmentamplitude}
                        }
        }
        {%TO 
        \pgfpointadd{\pgfpointdecoratedinputsegmentlast}{\pgfpoint{1pt}{1pt}}
        }
    }
    \state{final}{}
}
\makeatother


\begin{document}\ECFTallPaul

\begin{tikzpicture}
[zeros/.style={},scale=0.8,transform shape,
xes/.style={outer sep=1.5pt,decoration=penciline,decorate}]
\foreach \y in {1,...,4}{
    \foreach \x in {1,...,5}{
    \ifnum\x>\numexpr\y+1
    \node[zeros] (mynode-\x-\y) at (\y,-\x) {0};
    \else
    \pgfmathparse{\y-\x<1?"draw":""}
    \node[xes,\pgfmathresult](mynode-\x-\y) at (\y,-\x) {X};
    \ifnum\x<5
    \ifnum\x<\y\draw[<-,xes] (mynode-\x-\y) -- +(0,-0.7);\fi 
    \ifnum\x=\y\draw[<-,xes] (mynode-\x-\y) -- +(0,-0.7);\fi
    \ifnum\y<4\draw[<-,xes] (mynode-\x-\y) -- +(0.7,-0.7);\fi
    \fi
    \fi
    }
}
\node[fit=(mynode-1-1)(mynode-5-4),draw,thick,xes,red,label=90:{\Large dependencies}] {};

\begin{scope}[xshift=4.7cm]
    \foreach \x[remember=\x as \lastx] in {1,...,5}{
        \node (myvecs1-\x) at (0,-\x) {X};
        \node (myvecs2-\x) at (1,-\x) {X};
        \node (myvecsn-\x) at (5,-\x) {X};
        \ifnum\x>1
        \draw[->,xes] (myvecs1-\x) -- (myvecs1-\lastx);
        \draw[->,xes] (myvecs2-\x) -- (myvecs2-\lastx);
        \draw[->,xes] (myvecsn-\x) -- (myvecsn-\lastx);
        \fi
        }
\node[fit=(myvecs1-1)(myvecsn-5),draw,thick,xes,green!50!blue,label=90:{\Large Free of diagonal dep.}] {};
\end{scope}
\end{tikzpicture}


\end{document}

enter image description here

Mostly stolen from

Simulating hand-drawn lines

TikZ marking several blocks in a matrix

and for the font

CTAN font catalogue

Best Answer

Related Solutions

[Tex/LaTex] TikZ marking several blocks in a matrix

[Tex/LaTex] TikZ two-blocks matrix

Related Question