Calculations within Matrix Tikz












5















How can I tell tikz to make a calculation within a matrix. The same syntax outside does not work within as is shown in this MWE:



documentclass{article}

usepackage{tikz}

usetikzlibrary{matrix,calc}

usetikzlibrary{intersections}



begin{document}

begin{center}

begin{tikzpicture}[scale=.8, declare function={f(x)=1/ln(2)*ln(x);}]

draw[step=1.0,gray,thin,dotted] (-.5,-3) grid (8.5,4);

draw [-latex] (-.5,0) -- (8.5,0) node (xaxis) [below] {$x$};

draw [-latex] (0,-3.5) -- (0,4) node [left] {$y$};

   foreach x/xtext in {1/1,2/2,3/3,4/4,5/5,6/6}

   draw[xshift=x cm] (0pt,3pt) -- (0pt,0pt) 

     node[below=2pt,fill=white,font=normalsize]

  {$xtext$};    

   foreach y/ytext in {-2/-2,-1/-1, 1/1,2/2,3/3}

     draw[yshift=y cm] (2pt,0pt) -- (-2pt,0pt) 

    node[left,fill=white,font=normalsize]

    {$ytext$};

draw[name path=curve,domain=.17:8.5,samples=200,variable=x,red,<->,thick] 

   plot ({x},{f(x)});

 draw[fill=red,red] (1,{f(1)}) circle (3pt) node {};

 draw[fill=red,red] (2,{f(2)}) circle (3pt) node {};

 draw[fill=red,red] (4,{f(4)}) circle (3pt) node {};

 draw[fill=red,red] (8,{f(8)}) circle (3pt) node {};

 draw[fill=red,red] (.5,{f(.5)}) circle (3pt) ;

 draw[fill=red,red] (.25,{f(.25)}) circle (3pt) node {$$};

 node at (3.5,3.5) [text=red,fill=white] {$f(x)=log_{2} x, text{or} 2^{y}=x$};

 matrix[matrix of math nodes,nodes={align=center,inner sep=3pt,

  text height=1.5ex,text depth=.25ex,draw=gray!40,ultra thin},draw,inner 

   sep=0pt,ampersand replacement=&] (mat1)

    at (-5,0){

   |[fill=green!40!gray,text width=15mm]| x, text{or} 2^{y}  & | 

  [fill=green!40!gray,text width=11mm]| f(x) \ 

                 |[text width=15mm]|   1                      & |[text  

     width=11mm]|  0\

                                     |[text width=15mm]|   2                      

  & |[text width=11mm]|  1\

                                     |[text width=15mm]|   4                      

  & |[text width=11mm]|  2\

                                     |[text width=15mm]|   8                      

    & |[text width=11mm]|  {f(3)}3\

                                     |[text width=15mm]|   frac{1}{2}                      

  & |[text width=11mm]|  -1\

                                     |[text width=15mm]|   frac{1}{4}                      

  & |[text width=11mm]|  -2\

                                    };

end{tikzpicture}

end{center}

end{document}


This outputs



enter image description here






tikz-pgf tikz-matrix tikz-calc







share|improve this question


















  • 2





    Replace {f(3)} in the matrix by {pgfmathparse{f(3)}pgfmathprintnumber{pgfmathresult}} or, which seems more appropriate, {pgfmathparse{f(8)}pgfmathprintnumber{pgfmathresult}}?

    – marmot
    12 hours ago













  • @Marmot. I was just going to try that! Thank Marmot! Yes it works.

    – MathScholar
    12 hours ago


















5















How can I tell tikz to make a calculation within a matrix. The same syntax outside does not work within as is shown in this MWE:



documentclass{article}

usepackage{tikz}

usetikzlibrary{matrix,calc}

usetikzlibrary{intersections}



begin{document}

begin{center}

begin{tikzpicture}[scale=.8, declare function={f(x)=1/ln(2)*ln(x);}]

draw[step=1.0,gray,thin,dotted] (-.5,-3) grid (8.5,4);

draw [-latex] (-.5,0) -- (8.5,0) node (xaxis) [below] {$x$};

draw [-latex] (0,-3.5) -- (0,4) node [left] {$y$};

   foreach x/xtext in {1/1,2/2,3/3,4/4,5/5,6/6}

   draw[xshift=x cm] (0pt,3pt) -- (0pt,0pt) 

     node[below=2pt,fill=white,font=normalsize]

  {$xtext$};    

   foreach y/ytext in {-2/-2,-1/-1, 1/1,2/2,3/3}

     draw[yshift=y cm] (2pt,0pt) -- (-2pt,0pt) 

    node[left,fill=white,font=normalsize]

    {$ytext$};

draw[name path=curve,domain=.17:8.5,samples=200,variable=x,red,<->,thick] 

   plot ({x},{f(x)});

 draw[fill=red,red] (1,{f(1)}) circle (3pt) node {};

 draw[fill=red,red] (2,{f(2)}) circle (3pt) node {};

 draw[fill=red,red] (4,{f(4)}) circle (3pt) node {};

 draw[fill=red,red] (8,{f(8)}) circle (3pt) node {};

 draw[fill=red,red] (.5,{f(.5)}) circle (3pt) ;

 draw[fill=red,red] (.25,{f(.25)}) circle (3pt) node {$$};

 node at (3.5,3.5) [text=red,fill=white] {$f(x)=log_{2} x, text{or} 2^{y}=x$};

 matrix[matrix of math nodes,nodes={align=center,inner sep=3pt,

  text height=1.5ex,text depth=.25ex,draw=gray!40,ultra thin},draw,inner 

   sep=0pt,ampersand replacement=&] (mat1)

    at (-5,0){

   |[fill=green!40!gray,text width=15mm]| x, text{or} 2^{y}  & | 

  [fill=green!40!gray,text width=11mm]| f(x) \ 

                 |[text width=15mm]|   1                      & |[text  

     width=11mm]|  0\

                                     |[text width=15mm]|   2                      

  & |[text width=11mm]|  1\

                                     |[text width=15mm]|   4                      

  & |[text width=11mm]|  2\

                                     |[text width=15mm]|   8                      

    & |[text width=11mm]|  {f(3)}3\

                                     |[text width=15mm]|   frac{1}{2}                      

  & |[text width=11mm]|  -1\

                                     |[text width=15mm]|   frac{1}{4}                      

  & |[text width=11mm]|  -2\

                                    };

end{tikzpicture}

end{center}

end{document}


This outputs



enter image description here






tikz-pgf tikz-matrix tikz-calc







share|improve this question


















  • 2





    Replace {f(3)} in the matrix by {pgfmathparse{f(3)}pgfmathprintnumber{pgfmathresult}} or, which seems more appropriate, {pgfmathparse{f(8)}pgfmathprintnumber{pgfmathresult}}?

    – marmot
    12 hours ago













  • @Marmot. I was just going to try that! Thank Marmot! Yes it works.

    – MathScholar
    12 hours ago
















5












5








5








How can I tell tikz to make a calculation within a matrix. The same syntax outside does not work within as is shown in this MWE:



documentclass{article}

usepackage{tikz}

usetikzlibrary{matrix,calc}

usetikzlibrary{intersections}



begin{document}

begin{center}

begin{tikzpicture}[scale=.8, declare function={f(x)=1/ln(2)*ln(x);}]

draw[step=1.0,gray,thin,dotted] (-.5,-3) grid (8.5,4);

draw [-latex] (-.5,0) -- (8.5,0) node (xaxis) [below] {$x$};

draw [-latex] (0,-3.5) -- (0,4) node [left] {$y$};

   foreach x/xtext in {1/1,2/2,3/3,4/4,5/5,6/6}

   draw[xshift=x cm] (0pt,3pt) -- (0pt,0pt) 

     node[below=2pt,fill=white,font=normalsize]

  {$xtext$};    

   foreach y/ytext in {-2/-2,-1/-1, 1/1,2/2,3/3}

     draw[yshift=y cm] (2pt,0pt) -- (-2pt,0pt) 

    node[left,fill=white,font=normalsize]

    {$ytext$};

draw[name path=curve,domain=.17:8.5,samples=200,variable=x,red,<->,thick] 

   plot ({x},{f(x)});

 draw[fill=red,red] (1,{f(1)}) circle (3pt) node {};

 draw[fill=red,red] (2,{f(2)}) circle (3pt) node {};

 draw[fill=red,red] (4,{f(4)}) circle (3pt) node {};

 draw[fill=red,red] (8,{f(8)}) circle (3pt) node {};

 draw[fill=red,red] (.5,{f(.5)}) circle (3pt) ;

 draw[fill=red,red] (.25,{f(.25)}) circle (3pt) node {$$};

 node at (3.5,3.5) [text=red,fill=white] {$f(x)=log_{2} x, text{or} 2^{y}=x$};

 matrix[matrix of math nodes,nodes={align=center,inner sep=3pt,

  text height=1.5ex,text depth=.25ex,draw=gray!40,ultra thin},draw,inner 

   sep=0pt,ampersand replacement=&] (mat1)

    at (-5,0){

   |[fill=green!40!gray,text width=15mm]| x, text{or} 2^{y}  & | 

  [fill=green!40!gray,text width=11mm]| f(x) \ 

                 |[text width=15mm]|   1                      & |[text  

     width=11mm]|  0\

                                     |[text width=15mm]|   2                      

  & |[text width=11mm]|  1\

                                     |[text width=15mm]|   4                      

  & |[text width=11mm]|  2\

                                     |[text width=15mm]|   8                      

    & |[text width=11mm]|  {f(3)}3\

                                     |[text width=15mm]|   frac{1}{2}                      

  & |[text width=11mm]|  -1\

                                     |[text width=15mm]|   frac{1}{4}                      

  & |[text width=11mm]|  -2\

                                    };

end{tikzpicture}

end{center}

end{document}


This outputs



enter image description here






tikz-pgf tikz-matrix tikz-calc







share|improve this question














How can I tell tikz to make a calculation within a matrix. The same syntax outside does not work within as is shown in this MWE:



documentclass{article}

usepackage{tikz}

usetikzlibrary{matrix,calc}

usetikzlibrary{intersections}



begin{document}

begin{center}

begin{tikzpicture}[scale=.8, declare function={f(x)=1/ln(2)*ln(x);}]

draw[step=1.0,gray,thin,dotted] (-.5,-3) grid (8.5,4);

draw [-latex] (-.5,0) -- (8.5,0) node (xaxis) [below] {$x$};

draw [-latex] (0,-3.5) -- (0,4) node [left] {$y$};

   foreach x/xtext in {1/1,2/2,3/3,4/4,5/5,6/6}

   draw[xshift=x cm] (0pt,3pt) -- (0pt,0pt) 

     node[below=2pt,fill=white,font=normalsize]

  {$xtext$};    

   foreach y/ytext in {-2/-2,-1/-1, 1/1,2/2,3/3}

     draw[yshift=y cm] (2pt,0pt) -- (-2pt,0pt) 

    node[left,fill=white,font=normalsize]

    {$ytext$};

draw[name path=curve,domain=.17:8.5,samples=200,variable=x,red,<->,thick] 

   plot ({x},{f(x)});

 draw[fill=red,red] (1,{f(1)}) circle (3pt) node {};

 draw[fill=red,red] (2,{f(2)}) circle (3pt) node {};

 draw[fill=red,red] (4,{f(4)}) circle (3pt) node {};

 draw[fill=red,red] (8,{f(8)}) circle (3pt) node {};

 draw[fill=red,red] (.5,{f(.5)}) circle (3pt) ;

 draw[fill=red,red] (.25,{f(.25)}) circle (3pt) node {$$};

 node at (3.5,3.5) [text=red,fill=white] {$f(x)=log_{2} x, text{or} 2^{y}=x$};

 matrix[matrix of math nodes,nodes={align=center,inner sep=3pt,

  text height=1.5ex,text depth=.25ex,draw=gray!40,ultra thin},draw,inner 

   sep=0pt,ampersand replacement=&] (mat1)

    at (-5,0){

   |[fill=green!40!gray,text width=15mm]| x, text{or} 2^{y}  & | 

  [fill=green!40!gray,text width=11mm]| f(x) \ 

                 |[text width=15mm]|   1                      & |[text  

     width=11mm]|  0\

                                     |[text width=15mm]|   2                      

  & |[text width=11mm]|  1\

                                     |[text width=15mm]|   4                      

  & |[text width=11mm]|  2\

                                     |[text width=15mm]|   8                      

    & |[text width=11mm]|  {f(3)}3\

                                     |[text width=15mm]|   frac{1}{2}                      

  & |[text width=11mm]|  -1\

                                     |[text width=15mm]|   frac{1}{4}                      

  & |[text width=11mm]|  -2\

                                    };

end{tikzpicture}

end{center}

end{document}


This outputs



enter image description here






tikz-pgf tikz-matrix tikz-calc




tikz-pgf tikz-matrix tikz-calc






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 12 hours ago









MathScholarMathScholar

78629




78629








  • 2





    Replace {f(3)} in the matrix by {pgfmathparse{f(3)}pgfmathprintnumber{pgfmathresult}} or, which seems more appropriate, {pgfmathparse{f(8)}pgfmathprintnumber{pgfmathresult}}?

    – marmot
    12 hours ago













  • @Marmot. I was just going to try that! Thank Marmot! Yes it works.

    – MathScholar
    12 hours ago
















  • 2





    Replace {f(3)} in the matrix by {pgfmathparse{f(3)}pgfmathprintnumber{pgfmathresult}} or, which seems more appropriate, {pgfmathparse{f(8)}pgfmathprintnumber{pgfmathresult}}?

    – marmot
    12 hours ago













  • @Marmot. I was just going to try that! Thank Marmot! Yes it works.

    – MathScholar
    12 hours ago










2




2





Replace {f(3)} in the matrix by {pgfmathparse{f(3)}pgfmathprintnumber{pgfmathresult}} or, which seems more appropriate, {pgfmathparse{f(8)}pgfmathprintnumber{pgfmathresult}}?

– marmot
12 hours ago







Replace {f(3)} in the matrix by {pgfmathparse{f(3)}pgfmathprintnumber{pgfmathresult}} or, which seems more appropriate, {pgfmathparse{f(8)}pgfmathprintnumber{pgfmathresult}}?

– marmot
12 hours ago















@Marmot. I was just going to try that! Thank Marmot! Yes it works.

– MathScholar
12 hours ago







@Marmot. I was just going to try that! Thank Marmot! Yes it works.

– MathScholar
12 hours ago












1 Answer
1






active

oldest

votes


















6














I'll be happy to remove this if you want to remove your question, or feel it is not appropriate.



documentclass{article}

usepackage{amsmath}

usepackage{tikz}

usetikzlibrary{matrix,calc}

usetikzlibrary{intersections}



begin{document}

begin{center}

begin{tikzpicture}[scale=.8, declare function={f(x)=1/ln(2)*ln(x);}]

draw[step=1.0,gray,thin,dotted] (-.5,-3) grid (8.5,4);

draw [-latex] (-.5,0) -- (8.5,0) node (xaxis) [below] {$x$};

draw [-latex] (0,-3.5) -- (0,4) node [left] {$y$};

   foreach x/xtext in {1/1,2/2,3/3,4/4,5/5,6/6}

   draw[xshift=x cm] (0pt,3pt) -- (0pt,0pt) 

     node[below=2pt,fill=white,font=normalsize]

  {$xtext$};    

   foreach y/ytext in {-2/-2,-1/-1, 1/1,2/2,3/3}

     draw[yshift=y cm] (2pt,0pt) -- (-2pt,0pt) 

    node[left,fill=white,font=normalsize]

    {$ytext$};

draw[name path=curve,domain=.17:8.5,samples=200,variable=x,red,<->,thick] 

   plot ({x},{f(x)});

 draw[fill=red,red] (1,{f(1)}) circle (3pt) node {};

 draw[fill=red,red] (2,{f(2)}) circle (3pt) node {};

 draw[fill=red,red] (4,{f(4)}) circle (3pt) node {};

 draw[fill=red,red] (8,{f(8)}) circle (3pt) node {};

 draw[fill=red,red] (.5,{f(.5)}) circle (3pt) ;

 draw[fill=red,red] (.25,{f(.25)}) circle (3pt) node {$$};

 node at (3.5,3.5) [text=red,fill=white] {$f(x)=log_{2} x, text{or} 2^{y}=x$};

 matrix[matrix of math nodes,nodes={align=center,inner sep=3pt,

  text height=1.5ex,text depth=.25ex,draw=gray!40,ultra thin},draw,inner 

   sep=0pt,ampersand replacement=&] (mat1)

    at (-5,0){

   |[fill=green!40!gray,text width=15mm]| x, text{or} 2^{y}  & | 

  [fill=green!40!gray,text width=11mm]| f(x) \ 

                 |[text width=15mm]|   1                      & |[text  

     width=11mm]|  0\

                                     |[text width=15mm]|   2                      

  & |[text width=11mm]|  1\

                                     |[text width=15mm]|   4                      

  & |[text width=11mm]|  2\

                                     |[text width=15mm]|   8                      

    & |[text width=11mm]| 

    {pgfmathparse{f(8)}pgfmathprintnumber{pgfmathresult}}\

                                     |[text width=15mm]|   frac{1}{2}                      

  & |[text width=11mm]|  -1\

                                     |[text width=15mm]|   frac{1}{4}                      

  & |[text width=11mm]|  -2\

                                    };

end{tikzpicture}

end{center}

end{document}


enter image description here






share|improve this answer



















  • 2





    no it is okay to leave. It may be helpful to someone else!

    – MathScholar
    12 hours ago











Your Answer








StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "85"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f473511%2fcalculations-within-matrix-tikz%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









6














I'll be happy to remove this if you want to remove your question, or feel it is not appropriate.



documentclass{article}

usepackage{amsmath}

usepackage{tikz}

usetikzlibrary{matrix,calc}

usetikzlibrary{intersections}



begin{document}

begin{center}

begin{tikzpicture}[scale=.8, declare function={f(x)=1/ln(2)*ln(x);}]

draw[step=1.0,gray,thin,dotted] (-.5,-3) grid (8.5,4);

draw [-latex] (-.5,0) -- (8.5,0) node (xaxis) [below] {$x$};

draw [-latex] (0,-3.5) -- (0,4) node [left] {$y$};

   foreach x/xtext in {1/1,2/2,3/3,4/4,5/5,6/6}

   draw[xshift=x cm] (0pt,3pt) -- (0pt,0pt) 

     node[below=2pt,fill=white,font=normalsize]

  {$xtext$};    

   foreach y/ytext in {-2/-2,-1/-1, 1/1,2/2,3/3}

     draw[yshift=y cm] (2pt,0pt) -- (-2pt,0pt) 

    node[left,fill=white,font=normalsize]

    {$ytext$};

draw[name path=curve,domain=.17:8.5,samples=200,variable=x,red,<->,thick] 

   plot ({x},{f(x)});

 draw[fill=red,red] (1,{f(1)}) circle (3pt) node {};

 draw[fill=red,red] (2,{f(2)}) circle (3pt) node {};

 draw[fill=red,red] (4,{f(4)}) circle (3pt) node {};

 draw[fill=red,red] (8,{f(8)}) circle (3pt) node {};

 draw[fill=red,red] (.5,{f(.5)}) circle (3pt) ;

 draw[fill=red,red] (.25,{f(.25)}) circle (3pt) node {$$};

 node at (3.5,3.5) [text=red,fill=white] {$f(x)=log_{2} x, text{or} 2^{y}=x$};

 matrix[matrix of math nodes,nodes={align=center,inner sep=3pt,

  text height=1.5ex,text depth=.25ex,draw=gray!40,ultra thin},draw,inner 

   sep=0pt,ampersand replacement=&] (mat1)

    at (-5,0){

   |[fill=green!40!gray,text width=15mm]| x, text{or} 2^{y}  & | 

  [fill=green!40!gray,text width=11mm]| f(x) \ 

                 |[text width=15mm]|   1                      & |[text  

     width=11mm]|  0\

                                     |[text width=15mm]|   2                      

  & |[text width=11mm]|  1\

                                     |[text width=15mm]|   4                      

  & |[text width=11mm]|  2\

                                     |[text width=15mm]|   8                      

    & |[text width=11mm]| 

    {pgfmathparse{f(8)}pgfmathprintnumber{pgfmathresult}}\

                                     |[text width=15mm]|   frac{1}{2}                      

  & |[text width=11mm]|  -1\

                                     |[text width=15mm]|   frac{1}{4}                      

  & |[text width=11mm]|  -2\

                                    };

end{tikzpicture}

end{center}

end{document}


enter image description here






share|improve this answer



















  • 2





    no it is okay to leave. It may be helpful to someone else!

    – MathScholar
    12 hours ago
















6














I'll be happy to remove this if you want to remove your question, or feel it is not appropriate.



documentclass{article}

usepackage{amsmath}

usepackage{tikz}

usetikzlibrary{matrix,calc}

usetikzlibrary{intersections}



begin{document}

begin{center}

begin{tikzpicture}[scale=.8, declare function={f(x)=1/ln(2)*ln(x);}]

draw[step=1.0,gray,thin,dotted] (-.5,-3) grid (8.5,4);

draw [-latex] (-.5,0) -- (8.5,0) node (xaxis) [below] {$x$};

draw [-latex] (0,-3.5) -- (0,4) node [left] {$y$};

   foreach x/xtext in {1/1,2/2,3/3,4/4,5/5,6/6}

   draw[xshift=x cm] (0pt,3pt) -- (0pt,0pt) 

     node[below=2pt,fill=white,font=normalsize]

  {$xtext$};    

   foreach y/ytext in {-2/-2,-1/-1, 1/1,2/2,3/3}

     draw[yshift=y cm] (2pt,0pt) -- (-2pt,0pt) 

    node[left,fill=white,font=normalsize]

    {$ytext$};

draw[name path=curve,domain=.17:8.5,samples=200,variable=x,red,<->,thick] 

   plot ({x},{f(x)});

 draw[fill=red,red] (1,{f(1)}) circle (3pt) node {};

 draw[fill=red,red] (2,{f(2)}) circle (3pt) node {};

 draw[fill=red,red] (4,{f(4)}) circle (3pt) node {};

 draw[fill=red,red] (8,{f(8)}) circle (3pt) node {};

 draw[fill=red,red] (.5,{f(.5)}) circle (3pt) ;

 draw[fill=red,red] (.25,{f(.25)}) circle (3pt) node {$$};

 node at (3.5,3.5) [text=red,fill=white] {$f(x)=log_{2} x, text{or} 2^{y}=x$};

 matrix[matrix of math nodes,nodes={align=center,inner sep=3pt,

  text height=1.5ex,text depth=.25ex,draw=gray!40,ultra thin},draw,inner 

   sep=0pt,ampersand replacement=&] (mat1)

    at (-5,0){

   |[fill=green!40!gray,text width=15mm]| x, text{or} 2^{y}  & | 

  [fill=green!40!gray,text width=11mm]| f(x) \ 

                 |[text width=15mm]|   1                      & |[text  

     width=11mm]|  0\

                                     |[text width=15mm]|   2                      

  & |[text width=11mm]|  1\

                                     |[text width=15mm]|   4                      

  & |[text width=11mm]|  2\

                                     |[text width=15mm]|   8                      

    & |[text width=11mm]| 

    {pgfmathparse{f(8)}pgfmathprintnumber{pgfmathresult}}\

                                     |[text width=15mm]|   frac{1}{2}                      

  & |[text width=11mm]|  -1\

                                     |[text width=15mm]|   frac{1}{4}                      

  & |[text width=11mm]|  -2\

                                    };

end{tikzpicture}

end{center}

end{document}


enter image description here






share|improve this answer



















  • 2





    no it is okay to leave. It may be helpful to someone else!

    – MathScholar
    12 hours ago














6












6








6







I'll be happy to remove this if you want to remove your question, or feel it is not appropriate.



documentclass{article}

usepackage{amsmath}

usepackage{tikz}

usetikzlibrary{matrix,calc}

usetikzlibrary{intersections}



begin{document}

begin{center}

begin{tikzpicture}[scale=.8, declare function={f(x)=1/ln(2)*ln(x);}]

draw[step=1.0,gray,thin,dotted] (-.5,-3) grid (8.5,4);

draw [-latex] (-.5,0) -- (8.5,0) node (xaxis) [below] {$x$};

draw [-latex] (0,-3.5) -- (0,4) node [left] {$y$};

   foreach x/xtext in {1/1,2/2,3/3,4/4,5/5,6/6}

   draw[xshift=x cm] (0pt,3pt) -- (0pt,0pt) 

     node[below=2pt,fill=white,font=normalsize]

  {$xtext$};    

   foreach y/ytext in {-2/-2,-1/-1, 1/1,2/2,3/3}

     draw[yshift=y cm] (2pt,0pt) -- (-2pt,0pt) 

    node[left,fill=white,font=normalsize]

    {$ytext$};

draw[name path=curve,domain=.17:8.5,samples=200,variable=x,red,<->,thick] 

   plot ({x},{f(x)});

 draw[fill=red,red] (1,{f(1)}) circle (3pt) node {};

 draw[fill=red,red] (2,{f(2)}) circle (3pt) node {};

 draw[fill=red,red] (4,{f(4)}) circle (3pt) node {};

 draw[fill=red,red] (8,{f(8)}) circle (3pt) node {};

 draw[fill=red,red] (.5,{f(.5)}) circle (3pt) ;

 draw[fill=red,red] (.25,{f(.25)}) circle (3pt) node {$$};

 node at (3.5,3.5) [text=red,fill=white] {$f(x)=log_{2} x, text{or} 2^{y}=x$};

 matrix[matrix of math nodes,nodes={align=center,inner sep=3pt,

  text height=1.5ex,text depth=.25ex,draw=gray!40,ultra thin},draw,inner 

   sep=0pt,ampersand replacement=&] (mat1)

    at (-5,0){

   |[fill=green!40!gray,text width=15mm]| x, text{or} 2^{y}  & | 

  [fill=green!40!gray,text width=11mm]| f(x) \ 

                 |[text width=15mm]|   1                      & |[text  

     width=11mm]|  0\

                                     |[text width=15mm]|   2                      

  & |[text width=11mm]|  1\

                                     |[text width=15mm]|   4                      

  & |[text width=11mm]|  2\

                                     |[text width=15mm]|   8                      

    & |[text width=11mm]| 

    {pgfmathparse{f(8)}pgfmathprintnumber{pgfmathresult}}\

                                     |[text width=15mm]|   frac{1}{2}                      

  & |[text width=11mm]|  -1\

                                     |[text width=15mm]|   frac{1}{4}                      

  & |[text width=11mm]|  -2\

                                    };

end{tikzpicture}

end{center}

end{document}


enter image description here






share|improve this answer













I'll be happy to remove this if you want to remove your question, or feel it is not appropriate.



documentclass{article}

usepackage{amsmath}

usepackage{tikz}

usetikzlibrary{matrix,calc}

usetikzlibrary{intersections}



begin{document}

begin{center}

begin{tikzpicture}[scale=.8, declare function={f(x)=1/ln(2)*ln(x);}]

draw[step=1.0,gray,thin,dotted] (-.5,-3) grid (8.5,4);

draw [-latex] (-.5,0) -- (8.5,0) node (xaxis) [below] {$x$};

draw [-latex] (0,-3.5) -- (0,4) node [left] {$y$};

   foreach x/xtext in {1/1,2/2,3/3,4/4,5/5,6/6}

   draw[xshift=x cm] (0pt,3pt) -- (0pt,0pt) 

     node[below=2pt,fill=white,font=normalsize]

  {$xtext$};    

   foreach y/ytext in {-2/-2,-1/-1, 1/1,2/2,3/3}

     draw[yshift=y cm] (2pt,0pt) -- (-2pt,0pt) 

    node[left,fill=white,font=normalsize]

    {$ytext$};

draw[name path=curve,domain=.17:8.5,samples=200,variable=x,red,<->,thick] 

   plot ({x},{f(x)});

 draw[fill=red,red] (1,{f(1)}) circle (3pt) node {};

 draw[fill=red,red] (2,{f(2)}) circle (3pt) node {};

 draw[fill=red,red] (4,{f(4)}) circle (3pt) node {};

 draw[fill=red,red] (8,{f(8)}) circle (3pt) node {};

 draw[fill=red,red] (.5,{f(.5)}) circle (3pt) ;

 draw[fill=red,red] (.25,{f(.25)}) circle (3pt) node {$$};

 node at (3.5,3.5) [text=red,fill=white] {$f(x)=log_{2} x, text{or} 2^{y}=x$};

 matrix[matrix of math nodes,nodes={align=center,inner sep=3pt,

  text height=1.5ex,text depth=.25ex,draw=gray!40,ultra thin},draw,inner 

   sep=0pt,ampersand replacement=&] (mat1)

    at (-5,0){

   |[fill=green!40!gray,text width=15mm]| x, text{or} 2^{y}  & | 

  [fill=green!40!gray,text width=11mm]| f(x) \ 

                 |[text width=15mm]|   1                      & |[text  

     width=11mm]|  0\

                                     |[text width=15mm]|   2                      

  & |[text width=11mm]|  1\

                                     |[text width=15mm]|   4                      

  & |[text width=11mm]|  2\

                                     |[text width=15mm]|   8                      

    & |[text width=11mm]| 

    {pgfmathparse{f(8)}pgfmathprintnumber{pgfmathresult}}\

                                     |[text width=15mm]|   frac{1}{2}                      

  & |[text width=11mm]|  -1\

                                     |[text width=15mm]|   frac{1}{4}                      

  & |[text width=11mm]|  -2\

                                    };

end{tikzpicture}

end{center}

end{document}


enter image description here







share|improve this answer












share|improve this answer



share|improve this answer










answered 12 hours ago









marmotmarmot

97.6k4112216




97.6k4112216








  • 2





    no it is okay to leave. It may be helpful to someone else!

    – MathScholar
    12 hours ago














  • 2





    no it is okay to leave. It may be helpful to someone else!

    – MathScholar
    12 hours ago








2




2





no it is okay to leave. It may be helpful to someone else!

– MathScholar
12 hours ago





no it is okay to leave. It may be helpful to someone else!

– MathScholar
12 hours ago


















draft saved

draft discarded




















































Thanks for contributing an answer to TeX - LaTeX Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid …



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f473511%2fcalculations-within-matrix-tikz%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







-

Popular posts from this blog

How to label and detect the document text images

Image
1 $begingroup$ This is what I mean as document text image: I want to label the texts in image as separate blocks and my model should detect these labels as classes. NOTE: This is how the end result should be like: The labels like Block 1, Block 2, Block 3,.. should be Logo, Title, Date,.. Others, etc. Work done: First approach : I tried to implement this method via Object Detection, it didn't work. It didn't even detect any text. Second approach : Then I tried it using PixelLink. As this model is build for scene text detection, it detected each and every text in the image. But this method can detect multiple lines of text if the threshold values are increased. But I have no idea how do I add labels to the text blocks. PIXEL_CLS_WEIGHT_all_ones = 'PIXEL_CLS_WEIGHT_all_ones' PIXEL_C...
Read more

Vallis Paradisi

Image
Coordinata: .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap} 33°03′S 71°37′W  /  33.05°S 71.617°W  / -33.05; -71.617 Vallis Paradisi Res apud Vicidata repertae: Civitas : Chilia Numerus incolarum : 296 655 Zona horaria : UTC-4 Situs interretialis Nomen officiale : Valparaíso Gubernium Consilium : municipal council of Valparaíso Geographia Superficies : 401 600 000 Metrum quadratum Coniunctiones urbium Urbes gemellae : Ovetum , Badalona , Santa Fe , Ora longa , Sciamhaevum , Quantunia , Callao , Bat Yam , Melaka , Novorossiysk , Busan , Corduba , Odessa , Rosario , Malacca , Barcino , Soteropolis , Franciscopolis (California) , Guanajuato, Silao Tabula aut despectus Despectus in portum sinumque et urbem Vallis Paradisi Vallis Para...
Read more

Tabula Rosettana

Image
Tabula multilinguis Rosettana in Museo Britannico ostenditur. Tabula Rosettana, [1] etiam titulo OGIS 90 agnita, est stela decreto de rebus sacris in Aegypto anno 196 a.C.n. lato inscripta. Tabula iuxta Rosettam Aegypti, urbem in delta Nili et ad oram maris Mediterranei iacentem, anno 1799 a milite Francico reperta est. Inventio stelae, linguis duabus scripturisque tribus inscriptae, eruditis Instituti Aegypti statim nuntiata est; ibi enim iussu imperatoris Napoleonis eruditi omnium scientiarum (sub aegide Commissionis Scientiarum et Artium) properaverant cum expeditione Francica. Qua a Britannis mox debellata, tabula Rosettana Londinium missa hodie apud Museum Britannicum iacet. Textus Graecus cito lectus interpretationi textuum Aegyptiorum (in formis hieroglyphica et demotica expressorum) gradatim adiuvit. Denique textum plene interpretatus est Ioannes Franciscus Champollion. Ab opere eruditorum cumulativo coepit hodiernus scripturae hieroglyphicae linguaeque Aegyptiae a...
Read more