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Matrices and TikZ : arrows inside the matrix



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)TikZ: How to connect nodes and specify line direction?Difference between -| and |- in TikZRotate a node but not its content: the case of the ellipse decorationHow to define the default vertical distance between nodes?TikZ scaling graphic and adjust node position and keep font sizeNumerical conditional within tikz keys?TikZ/ERD: node (=Entity) label on the insideTikz matrix arrows alignmentTikZ: Drawing an arc from an intersection to an intersectionLine up nested tikz enviroments or how to get rid of themProblems with nested TikZpicturesTikz matrix inside foreach










4















In the example below, the arrows fit inside the matrix but I would like them to stop at the limit of the delimiters.



 documentclass[border=5pt]standalone
usepackagetikz
usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
begindocument

begintikzpicture[>=stealth,thick,baseline]
matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
vdots & vdots & & vdots & & vdots\
a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
vdots & vdots & & vdots & & vdots\
a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
;

node[
fit=(A-4-6)(A-4-6),
inner xsep=20pt,inner ysep=0,
label=right: $i$-ième ligne
](L) ;

node[
fit=(A-6-4)(A-6-4),
inner xsep=20pt,inner ysep=20pt,
label=below: $j$-ième colonne
](C) ;

draw[->](L.east)-- (A-4-6);
draw[->](C.south)-- (A-6-4);

endtikzpicture

enddocument


enter image description here



enter image description here










share|improve this question


























    4















    In the example below, the arrows fit inside the matrix but I would like them to stop at the limit of the delimiters.



     documentclass[border=5pt]standalone
    usepackagetikz
    usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
    begindocument

    begintikzpicture[>=stealth,thick,baseline]
    matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
    a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
    a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
    vdots & vdots & & vdots & & vdots\
    a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
    vdots & vdots & & vdots & & vdots\
    a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
    ;

    node[
    fit=(A-4-6)(A-4-6),
    inner xsep=20pt,inner ysep=0,
    label=right: $i$-ième ligne
    ](L) ;

    node[
    fit=(A-6-4)(A-6-4),
    inner xsep=20pt,inner ysep=20pt,
    label=below: $j$-ième colonne
    ](C) ;

    draw[->](L.east)-- (A-4-6);
    draw[->](C.south)-- (A-6-4);

    endtikzpicture

    enddocument


    enter image description here



    enter image description here










    share|improve this question
























      4












      4








      4








      In the example below, the arrows fit inside the matrix but I would like them to stop at the limit of the delimiters.



       documentclass[border=5pt]standalone
      usepackagetikz
      usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
      begindocument

      begintikzpicture[>=stealth,thick,baseline]
      matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
      a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
      a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
      vdots & vdots & & vdots & & vdots\
      a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
      vdots & vdots & & vdots & & vdots\
      a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
      ;

      node[
      fit=(A-4-6)(A-4-6),
      inner xsep=20pt,inner ysep=0,
      label=right: $i$-ième ligne
      ](L) ;

      node[
      fit=(A-6-4)(A-6-4),
      inner xsep=20pt,inner ysep=20pt,
      label=below: $j$-ième colonne
      ](C) ;

      draw[->](L.east)-- (A-4-6);
      draw[->](C.south)-- (A-6-4);

      endtikzpicture

      enddocument


      enter image description here



      enter image description here










      share|improve this question














      In the example below, the arrows fit inside the matrix but I would like them to stop at the limit of the delimiters.



       documentclass[border=5pt]standalone
      usepackagetikz
      usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
      begindocument

      begintikzpicture[>=stealth,thick,baseline]
      matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
      a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
      a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
      vdots & vdots & & vdots & & vdots\
      a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
      vdots & vdots & & vdots & & vdots\
      a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
      ;

      node[
      fit=(A-4-6)(A-4-6),
      inner xsep=20pt,inner ysep=0,
      label=right: $i$-ième ligne
      ](L) ;

      node[
      fit=(A-6-4)(A-6-4),
      inner xsep=20pt,inner ysep=20pt,
      label=below: $j$-ième colonne
      ](C) ;

      draw[->](L.east)-- (A-4-6);
      draw[->](C.south)-- (A-6-4);

      endtikzpicture

      enddocument


      enter image description here



      enter image description here







      tikz-pgf






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Apr 17 at 9:31









      FabriceFabrice

      1,4931922




      1,4931922




















          2 Answers
          2






          active

          oldest

          votes


















          4














          Add an xshift:



           documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[
          fit=(A-4-6)(A-4-6),
          inner xsep=20pt,inner ysep=0,
          label=right: $i$-ième ligne
          ](L) ;

          node[
          fit=(A-6-4)(A-6-4),
          inner xsep=20pt,inner ysep=20pt,
          label=below: $j$-ième colonne
          ](C) ;

          draw[->](L.east)-- ([xshift=12pt]A-4-6.east);
          draw[->](C.south)-- (A-6-4);

          endtikzpicture

          enddocument


          enter image description here



          Or shorten the arrow:



           documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[
          fit=(A-4-6)(A-4-6),
          inner xsep=20pt,inner ysep=0,
          label=right: $i$-ième ligne
          ](L) ;

          node[
          fit=(A-6-4)(A-6-4),
          inner xsep=20pt,inner ysep=20pt,
          label=below: $j$-ième colonne
          ](C) ;

          draw[->, shorten > =12pt](L.east)-- (A-4-6.east);
          draw[->](C.south)-- (A-6-4);

          endtikzpicture

          enddocument


          And by the way why do you need fit?



          documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix, positioning

          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[right =30pt of A-4-6.east](L) $i$-ième ligne;

          node[below=20pt of A-6-4.south](C) $j$-ième colonne;

          draw[->, shorten > =12pt](L.west)-- (A-4-6.east);
          draw[->](C.north)-- (A-6-4.south);

          endtikzpicture

          enddocument


          enter image description here






          share|improve this answer

























          • Thank you for your proposition.

            – Fabrice
            Apr 17 at 10:17











          • @Fabrice You're welcome and thank you for accepting my answer!

            – CarLaTeX
            Apr 17 at 10:31











          • @Fabrice However, Ignasi's answer is more elegant.

            – CarLaTeX
            Apr 17 at 10:34


















          5














          Matrix delimiters are nodes but unnamed by default. Therefore, if you add a name you can use them as reference like any other node and lines will stop on their borders.



          In following code, I've used every right delimiter style to add a name which is used later on.



          A matrix is an special kind of node which contains other nodes. So if you want to stop a line on matrix border you can use the matrix name as reference. Matrix elements have their own border. I've used intersection points between column center and south matrix border to place the vertical arrow and row center and east anchor on right delimiter to place the horizontal arrow. If you need to understand -| (or |-) syntax, look at https://tex.stackexchange.com/a/481234/1952 or https://tex.stackexchange.com/a/22954/1952.



          documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline,
          every right delimiter/.append style=name=rd,
          ]
          matrix [matrix of math nodes,
          left delimiter=(,
          right delimiter=),
          ](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          draw[<-] (rd.east|-A-4-1.center)--++(0:6mm) node[right]$i$-ième colonne;
          draw[<-] (A.south-|A-1-4.center) --++(-90:6mm) node[below]$j$-ième colonne;

          endtikzpicture

          enddocument


          enter image description here






          share|improve this answer




















          • 1





            Awesome! It didn't come to my mind to name the node of the right delimeter, +1!

            – CarLaTeX
            Apr 17 at 10:33






          • 1





            But the horizontal arrow should be aligned with the ith row...

            – CarLaTeX
            Apr 17 at 12:42











          • @CarLaTeX you're right. I'll change as soon as I've a computer and Internet access at hand ;-)

            – Ignasi
            Apr 17 at 17:51











          • Thank you, because your answer is really elegant!

            – CarLaTeX
            Apr 17 at 18:12











          • @ Ignasi Could you explain this (A.south-|A-1-4.center) ? Thank you.

            – Fabrice
            Apr 18 at 9:06












          Your Answer








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          2 Answers
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          2 Answers
          2






          active

          oldest

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          active

          oldest

          votes






          active

          oldest

          votes









          4














          Add an xshift:



           documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[
          fit=(A-4-6)(A-4-6),
          inner xsep=20pt,inner ysep=0,
          label=right: $i$-ième ligne
          ](L) ;

          node[
          fit=(A-6-4)(A-6-4),
          inner xsep=20pt,inner ysep=20pt,
          label=below: $j$-ième colonne
          ](C) ;

          draw[->](L.east)-- ([xshift=12pt]A-4-6.east);
          draw[->](C.south)-- (A-6-4);

          endtikzpicture

          enddocument


          enter image description here



          Or shorten the arrow:



           documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[
          fit=(A-4-6)(A-4-6),
          inner xsep=20pt,inner ysep=0,
          label=right: $i$-ième ligne
          ](L) ;

          node[
          fit=(A-6-4)(A-6-4),
          inner xsep=20pt,inner ysep=20pt,
          label=below: $j$-ième colonne
          ](C) ;

          draw[->, shorten > =12pt](L.east)-- (A-4-6.east);
          draw[->](C.south)-- (A-6-4);

          endtikzpicture

          enddocument


          And by the way why do you need fit?



          documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix, positioning

          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[right =30pt of A-4-6.east](L) $i$-ième ligne;

          node[below=20pt of A-6-4.south](C) $j$-ième colonne;

          draw[->, shorten > =12pt](L.west)-- (A-4-6.east);
          draw[->](C.north)-- (A-6-4.south);

          endtikzpicture

          enddocument


          enter image description here






          share|improve this answer

























          • Thank you for your proposition.

            – Fabrice
            Apr 17 at 10:17











          • @Fabrice You're welcome and thank you for accepting my answer!

            – CarLaTeX
            Apr 17 at 10:31











          • @Fabrice However, Ignasi's answer is more elegant.

            – CarLaTeX
            Apr 17 at 10:34















          4














          Add an xshift:



           documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[
          fit=(A-4-6)(A-4-6),
          inner xsep=20pt,inner ysep=0,
          label=right: $i$-ième ligne
          ](L) ;

          node[
          fit=(A-6-4)(A-6-4),
          inner xsep=20pt,inner ysep=20pt,
          label=below: $j$-ième colonne
          ](C) ;

          draw[->](L.east)-- ([xshift=12pt]A-4-6.east);
          draw[->](C.south)-- (A-6-4);

          endtikzpicture

          enddocument


          enter image description here



          Or shorten the arrow:



           documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[
          fit=(A-4-6)(A-4-6),
          inner xsep=20pt,inner ysep=0,
          label=right: $i$-ième ligne
          ](L) ;

          node[
          fit=(A-6-4)(A-6-4),
          inner xsep=20pt,inner ysep=20pt,
          label=below: $j$-ième colonne
          ](C) ;

          draw[->, shorten > =12pt](L.east)-- (A-4-6.east);
          draw[->](C.south)-- (A-6-4);

          endtikzpicture

          enddocument


          And by the way why do you need fit?



          documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix, positioning

          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[right =30pt of A-4-6.east](L) $i$-ième ligne;

          node[below=20pt of A-6-4.south](C) $j$-ième colonne;

          draw[->, shorten > =12pt](L.west)-- (A-4-6.east);
          draw[->](C.north)-- (A-6-4.south);

          endtikzpicture

          enddocument


          enter image description here






          share|improve this answer

























          • Thank you for your proposition.

            – Fabrice
            Apr 17 at 10:17











          • @Fabrice You're welcome and thank you for accepting my answer!

            – CarLaTeX
            Apr 17 at 10:31











          • @Fabrice However, Ignasi's answer is more elegant.

            – CarLaTeX
            Apr 17 at 10:34













          4












          4








          4







          Add an xshift:



           documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[
          fit=(A-4-6)(A-4-6),
          inner xsep=20pt,inner ysep=0,
          label=right: $i$-ième ligne
          ](L) ;

          node[
          fit=(A-6-4)(A-6-4),
          inner xsep=20pt,inner ysep=20pt,
          label=below: $j$-ième colonne
          ](C) ;

          draw[->](L.east)-- ([xshift=12pt]A-4-6.east);
          draw[->](C.south)-- (A-6-4);

          endtikzpicture

          enddocument


          enter image description here



          Or shorten the arrow:



           documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[
          fit=(A-4-6)(A-4-6),
          inner xsep=20pt,inner ysep=0,
          label=right: $i$-ième ligne
          ](L) ;

          node[
          fit=(A-6-4)(A-6-4),
          inner xsep=20pt,inner ysep=20pt,
          label=below: $j$-ième colonne
          ](C) ;

          draw[->, shorten > =12pt](L.east)-- (A-4-6.east);
          draw[->](C.south)-- (A-6-4);

          endtikzpicture

          enddocument


          And by the way why do you need fit?



          documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix, positioning

          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[right =30pt of A-4-6.east](L) $i$-ième ligne;

          node[below=20pt of A-6-4.south](C) $j$-ième colonne;

          draw[->, shorten > =12pt](L.west)-- (A-4-6.east);
          draw[->](C.north)-- (A-6-4.south);

          endtikzpicture

          enddocument


          enter image description here






          share|improve this answer















          Add an xshift:



           documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[
          fit=(A-4-6)(A-4-6),
          inner xsep=20pt,inner ysep=0,
          label=right: $i$-ième ligne
          ](L) ;

          node[
          fit=(A-6-4)(A-6-4),
          inner xsep=20pt,inner ysep=20pt,
          label=below: $j$-ième colonne
          ](C) ;

          draw[->](L.east)-- ([xshift=12pt]A-4-6.east);
          draw[->](C.south)-- (A-6-4);

          endtikzpicture

          enddocument


          enter image description here



          Or shorten the arrow:



           documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[
          fit=(A-4-6)(A-4-6),
          inner xsep=20pt,inner ysep=0,
          label=right: $i$-ième ligne
          ](L) ;

          node[
          fit=(A-6-4)(A-6-4),
          inner xsep=20pt,inner ysep=20pt,
          label=below: $j$-ième colonne
          ](C) ;

          draw[->, shorten > =12pt](L.east)-- (A-4-6.east);
          draw[->](C.south)-- (A-6-4);

          endtikzpicture

          enddocument


          And by the way why do you need fit?



          documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix, positioning

          begindocument

          begintikzpicture[>=stealth,thick,baseline]
          matrix [matrix of math nodes,left delimiter=(,right delimiter=)](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          node[right =30pt of A-4-6.east](L) $i$-ième ligne;

          node[below=20pt of A-6-4.south](C) $j$-ième colonne;

          draw[->, shorten > =12pt](L.west)-- (A-4-6.east);
          draw[->](C.north)-- (A-6-4.south);

          endtikzpicture

          enddocument


          enter image description here







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Apr 17 at 10:03

























          answered Apr 17 at 9:41









          CarLaTeXCarLaTeX

          35.2k554148




          35.2k554148












          • Thank you for your proposition.

            – Fabrice
            Apr 17 at 10:17











          • @Fabrice You're welcome and thank you for accepting my answer!

            – CarLaTeX
            Apr 17 at 10:31











          • @Fabrice However, Ignasi's answer is more elegant.

            – CarLaTeX
            Apr 17 at 10:34

















          • Thank you for your proposition.

            – Fabrice
            Apr 17 at 10:17











          • @Fabrice You're welcome and thank you for accepting my answer!

            – CarLaTeX
            Apr 17 at 10:31











          • @Fabrice However, Ignasi's answer is more elegant.

            – CarLaTeX
            Apr 17 at 10:34
















          Thank you for your proposition.

          – Fabrice
          Apr 17 at 10:17





          Thank you for your proposition.

          – Fabrice
          Apr 17 at 10:17













          @Fabrice You're welcome and thank you for accepting my answer!

          – CarLaTeX
          Apr 17 at 10:31





          @Fabrice You're welcome and thank you for accepting my answer!

          – CarLaTeX
          Apr 17 at 10:31













          @Fabrice However, Ignasi's answer is more elegant.

          – CarLaTeX
          Apr 17 at 10:34





          @Fabrice However, Ignasi's answer is more elegant.

          – CarLaTeX
          Apr 17 at 10:34











          5














          Matrix delimiters are nodes but unnamed by default. Therefore, if you add a name you can use them as reference like any other node and lines will stop on their borders.



          In following code, I've used every right delimiter style to add a name which is used later on.



          A matrix is an special kind of node which contains other nodes. So if you want to stop a line on matrix border you can use the matrix name as reference. Matrix elements have their own border. I've used intersection points between column center and south matrix border to place the vertical arrow and row center and east anchor on right delimiter to place the horizontal arrow. If you need to understand -| (or |-) syntax, look at https://tex.stackexchange.com/a/481234/1952 or https://tex.stackexchange.com/a/22954/1952.



          documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline,
          every right delimiter/.append style=name=rd,
          ]
          matrix [matrix of math nodes,
          left delimiter=(,
          right delimiter=),
          ](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          draw[<-] (rd.east|-A-4-1.center)--++(0:6mm) node[right]$i$-ième colonne;
          draw[<-] (A.south-|A-1-4.center) --++(-90:6mm) node[below]$j$-ième colonne;

          endtikzpicture

          enddocument


          enter image description here






          share|improve this answer




















          • 1





            Awesome! It didn't come to my mind to name the node of the right delimeter, +1!

            – CarLaTeX
            Apr 17 at 10:33






          • 1





            But the horizontal arrow should be aligned with the ith row...

            – CarLaTeX
            Apr 17 at 12:42











          • @CarLaTeX you're right. I'll change as soon as I've a computer and Internet access at hand ;-)

            – Ignasi
            Apr 17 at 17:51











          • Thank you, because your answer is really elegant!

            – CarLaTeX
            Apr 17 at 18:12











          • @ Ignasi Could you explain this (A.south-|A-1-4.center) ? Thank you.

            – Fabrice
            Apr 18 at 9:06
















          5














          Matrix delimiters are nodes but unnamed by default. Therefore, if you add a name you can use them as reference like any other node and lines will stop on their borders.



          In following code, I've used every right delimiter style to add a name which is used later on.



          A matrix is an special kind of node which contains other nodes. So if you want to stop a line on matrix border you can use the matrix name as reference. Matrix elements have their own border. I've used intersection points between column center and south matrix border to place the vertical arrow and row center and east anchor on right delimiter to place the horizontal arrow. If you need to understand -| (or |-) syntax, look at https://tex.stackexchange.com/a/481234/1952 or https://tex.stackexchange.com/a/22954/1952.



          documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline,
          every right delimiter/.append style=name=rd,
          ]
          matrix [matrix of math nodes,
          left delimiter=(,
          right delimiter=),
          ](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          draw[<-] (rd.east|-A-4-1.center)--++(0:6mm) node[right]$i$-ième colonne;
          draw[<-] (A.south-|A-1-4.center) --++(-90:6mm) node[below]$j$-ième colonne;

          endtikzpicture

          enddocument


          enter image description here






          share|improve this answer




















          • 1





            Awesome! It didn't come to my mind to name the node of the right delimeter, +1!

            – CarLaTeX
            Apr 17 at 10:33






          • 1





            But the horizontal arrow should be aligned with the ith row...

            – CarLaTeX
            Apr 17 at 12:42











          • @CarLaTeX you're right. I'll change as soon as I've a computer and Internet access at hand ;-)

            – Ignasi
            Apr 17 at 17:51











          • Thank you, because your answer is really elegant!

            – CarLaTeX
            Apr 17 at 18:12











          • @ Ignasi Could you explain this (A.south-|A-1-4.center) ? Thank you.

            – Fabrice
            Apr 18 at 9:06














          5












          5








          5







          Matrix delimiters are nodes but unnamed by default. Therefore, if you add a name you can use them as reference like any other node and lines will stop on their borders.



          In following code, I've used every right delimiter style to add a name which is used later on.



          A matrix is an special kind of node which contains other nodes. So if you want to stop a line on matrix border you can use the matrix name as reference. Matrix elements have their own border. I've used intersection points between column center and south matrix border to place the vertical arrow and row center and east anchor on right delimiter to place the horizontal arrow. If you need to understand -| (or |-) syntax, look at https://tex.stackexchange.com/a/481234/1952 or https://tex.stackexchange.com/a/22954/1952.



          documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline,
          every right delimiter/.append style=name=rd,
          ]
          matrix [matrix of math nodes,
          left delimiter=(,
          right delimiter=),
          ](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          draw[<-] (rd.east|-A-4-1.center)--++(0:6mm) node[right]$i$-ième colonne;
          draw[<-] (A.south-|A-1-4.center) --++(-90:6mm) node[below]$j$-ième colonne;

          endtikzpicture

          enddocument


          enter image description here






          share|improve this answer















          Matrix delimiters are nodes but unnamed by default. Therefore, if you add a name you can use them as reference like any other node and lines will stop on their borders.



          In following code, I've used every right delimiter style to add a name which is used later on.



          A matrix is an special kind of node which contains other nodes. So if you want to stop a line on matrix border you can use the matrix name as reference. Matrix elements have their own border. I've used intersection points between column center and south matrix border to place the vertical arrow and row center and east anchor on right delimiter to place the horizontal arrow. If you need to understand -| (or |-) syntax, look at https://tex.stackexchange.com/a/481234/1952 or https://tex.stackexchange.com/a/22954/1952.



          documentclass[border=5pt]standalone
          usepackagetikz
          usetikzlibrarymatrix,decorations.pathreplacing, calc, positioning,fit
          begindocument

          begintikzpicture[>=stealth,thick,baseline,
          every right delimiter/.append style=name=rd,
          ]
          matrix [matrix of math nodes,
          left delimiter=(,
          right delimiter=),
          ](A)
          a_1,1 & a_1,2 & dots & a_1,j & dots & a_1,n\
          a_2,1 & a_2,2 & dots & a_2,j & dots & a_2,n\
          vdots & vdots & & vdots & & vdots\
          a_i,1 & a_i,2 & dots & a_i,j & dots & a_i,n\
          vdots & vdots & & vdots & & vdots\
          a_n,1 & a_n,2 & dots & a_n,j & dots & a_n,n\
          ;

          draw[<-] (rd.east|-A-4-1.center)--++(0:6mm) node[right]$i$-ième colonne;
          draw[<-] (A.south-|A-1-4.center) --++(-90:6mm) node[below]$j$-ième colonne;

          endtikzpicture

          enddocument


          enter image description here







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited 2 days ago

























          answered Apr 17 at 10:19









          IgnasiIgnasi

          96.1k5176321




          96.1k5176321







          • 1





            Awesome! It didn't come to my mind to name the node of the right delimeter, +1!

            – CarLaTeX
            Apr 17 at 10:33






          • 1





            But the horizontal arrow should be aligned with the ith row...

            – CarLaTeX
            Apr 17 at 12:42











          • @CarLaTeX you're right. I'll change as soon as I've a computer and Internet access at hand ;-)

            – Ignasi
            Apr 17 at 17:51











          • Thank you, because your answer is really elegant!

            – CarLaTeX
            Apr 17 at 18:12











          • @ Ignasi Could you explain this (A.south-|A-1-4.center) ? Thank you.

            – Fabrice
            Apr 18 at 9:06













          • 1





            Awesome! It didn't come to my mind to name the node of the right delimeter, +1!

            – CarLaTeX
            Apr 17 at 10:33






          • 1





            But the horizontal arrow should be aligned with the ith row...

            – CarLaTeX
            Apr 17 at 12:42











          • @CarLaTeX you're right. I'll change as soon as I've a computer and Internet access at hand ;-)

            – Ignasi
            Apr 17 at 17:51











          • Thank you, because your answer is really elegant!

            – CarLaTeX
            Apr 17 at 18:12











          • @ Ignasi Could you explain this (A.south-|A-1-4.center) ? Thank you.

            – Fabrice
            Apr 18 at 9:06








          1




          1





          Awesome! It didn't come to my mind to name the node of the right delimeter, +1!

          – CarLaTeX
          Apr 17 at 10:33





          Awesome! It didn't come to my mind to name the node of the right delimeter, +1!

          – CarLaTeX
          Apr 17 at 10:33




          1




          1





          But the horizontal arrow should be aligned with the ith row...

          – CarLaTeX
          Apr 17 at 12:42





          But the horizontal arrow should be aligned with the ith row...

          – CarLaTeX
          Apr 17 at 12:42













          @CarLaTeX you're right. I'll change as soon as I've a computer and Internet access at hand ;-)

          – Ignasi
          Apr 17 at 17:51





          @CarLaTeX you're right. I'll change as soon as I've a computer and Internet access at hand ;-)

          – Ignasi
          Apr 17 at 17:51













          Thank you, because your answer is really elegant!

          – CarLaTeX
          Apr 17 at 18:12





          Thank you, because your answer is really elegant!

          – CarLaTeX
          Apr 17 at 18:12













          @ Ignasi Could you explain this (A.south-|A-1-4.center) ? Thank you.

          – Fabrice
          Apr 18 at 9:06






          @ Ignasi Could you explain this (A.south-|A-1-4.center) ? Thank you.

          – Fabrice
          Apr 18 at 9:06


















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