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Breaking a Loop in Tikz


TikZ: Cropping the Bounding BoxNested foreach loop in TikZMake tikzpicture white on blackTikZ scaling graphic and adjust node position and keep font sizeTikZ/ERD: node (=Entity) label on the insideTikZ: incrementing a foreach loopTikZ: Drawing an arc from an intersection to an intersectionLine up nested tikz enviroments or how to get rid of themCommutative diagram with curve connecting between nodesMisunderstanding tikz foreach loop













6















documentclass{article}

usepackage{tikz}



begin{document}





 foreach N in {8}

 {begin{tikzpicture}[scale=1.2,declare function={f(x)=((1/3)*(x)^(3)-3* 

            (x)^(2)+8*x-3;},

       lnode/.style={fill=white,font=normalsize,inner sep=0pt,text height=1.5em}]

   pgfmathtruncatemacro{M}{1}

    coordinate (start) at (.8,{f(.8)});

    foreach X [remember=X as LastX (initially 0)] in {1,2,3,4,...,8}

     ifnumX<5

     {draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

    draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

   path  (1+LastX*4/N,0pt) coordinate (xX);

    ifnumX=1

   draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt) coordinate (xX)

   node[anchor=north east,xshift=2pt,lnode]  {$a=x_{X}$};

  else

   pgfmathtruncatemacro{itest}{mod(X,M)}

   ifnumitest=0

      pgfmathsetmacro{dist}{4-LastX*4/N}

      ifdimdist cm>5pt

        draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt)

         node[anchor=north,lnode] {$x_{X}$}; 

                else

        ifnumX=8

            fi

          fi  

        fi

      fi

    fi

   }

 draw (5,3pt) -- (5,0pt)

 node[anchor=north west,xshift=-2pt,lnode]{$b$};

 %draw (1,3pt) -- (1,0pt)

 % node[anchor=north west,xshift=-2pt,lnode]{$a$};

 node at (5.3,5) [text=red] {$f(x)$};

 coordinate (end) at (5.05,{f(5.05)});

 draw (5,3pt) -- (5,0pt) node[anchor=north west,xshift=-2pt,lnode]{$b$};

 draw (5,0)--(5,{f(5)});

 draw [-latex] (-0.5,0) -- (6,0) node (xaxis) [below] {$x$};

 draw [-latex] (0,-0.5) -- (0,5) node [left] {$y$};            

 draw[domain=.5:5.3,samples=200,variable=x,red,<->,thick] plot ({x},{f(x)});

node at (5.3,5) [text=red] {$f(x)$};             

end{tikzpicture}}



end{document}


This produces an error but outputs:



enter image description here



I am trying to use an existing program written by Marmot to create



enter image description here






tikz-pgf foreach







share|improve this question


















  • 2





    The error goes away if you move the first ifnum into the group: {ifnumX<5 nstead of ifnumX<5{.

    – marmot
    3 hours ago











  • @Marmot yes its working now

    – MathScholar
    3 hours ago
















6















documentclass{article}

usepackage{tikz}



begin{document}





 foreach N in {8}

 {begin{tikzpicture}[scale=1.2,declare function={f(x)=((1/3)*(x)^(3)-3* 

            (x)^(2)+8*x-3;},

       lnode/.style={fill=white,font=normalsize,inner sep=0pt,text height=1.5em}]

   pgfmathtruncatemacro{M}{1}

    coordinate (start) at (.8,{f(.8)});

    foreach X [remember=X as LastX (initially 0)] in {1,2,3,4,...,8}

     ifnumX<5

     {draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

    draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

   path  (1+LastX*4/N,0pt) coordinate (xX);

    ifnumX=1

   draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt) coordinate (xX)

   node[anchor=north east,xshift=2pt,lnode]  {$a=x_{X}$};

  else

   pgfmathtruncatemacro{itest}{mod(X,M)}

   ifnumitest=0

      pgfmathsetmacro{dist}{4-LastX*4/N}

      ifdimdist cm>5pt

        draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt)

         node[anchor=north,lnode] {$x_{X}$}; 

                else

        ifnumX=8

            fi

          fi  

        fi

      fi

    fi

   }

 draw (5,3pt) -- (5,0pt)

 node[anchor=north west,xshift=-2pt,lnode]{$b$};

 %draw (1,3pt) -- (1,0pt)

 % node[anchor=north west,xshift=-2pt,lnode]{$a$};

 node at (5.3,5) [text=red] {$f(x)$};

 coordinate (end) at (5.05,{f(5.05)});

 draw (5,3pt) -- (5,0pt) node[anchor=north west,xshift=-2pt,lnode]{$b$};

 draw (5,0)--(5,{f(5)});

 draw [-latex] (-0.5,0) -- (6,0) node (xaxis) [below] {$x$};

 draw [-latex] (0,-0.5) -- (0,5) node [left] {$y$};            

 draw[domain=.5:5.3,samples=200,variable=x,red,<->,thick] plot ({x},{f(x)});

node at (5.3,5) [text=red] {$f(x)$};             

end{tikzpicture}}



end{document}


This produces an error but outputs:



enter image description here



I am trying to use an existing program written by Marmot to create



enter image description here






tikz-pgf foreach







share|improve this question


















  • 2





    The error goes away if you move the first ifnum into the group: {ifnumX<5 nstead of ifnumX<5{.

    – marmot
    3 hours ago











  • @Marmot yes its working now

    – MathScholar
    3 hours ago














6












6








6








documentclass{article}

usepackage{tikz}



begin{document}





 foreach N in {8}

 {begin{tikzpicture}[scale=1.2,declare function={f(x)=((1/3)*(x)^(3)-3* 

            (x)^(2)+8*x-3;},

       lnode/.style={fill=white,font=normalsize,inner sep=0pt,text height=1.5em}]

   pgfmathtruncatemacro{M}{1}

    coordinate (start) at (.8,{f(.8)});

    foreach X [remember=X as LastX (initially 0)] in {1,2,3,4,...,8}

     ifnumX<5

     {draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

    draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

   path  (1+LastX*4/N,0pt) coordinate (xX);

    ifnumX=1

   draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt) coordinate (xX)

   node[anchor=north east,xshift=2pt,lnode]  {$a=x_{X}$};

  else

   pgfmathtruncatemacro{itest}{mod(X,M)}

   ifnumitest=0

      pgfmathsetmacro{dist}{4-LastX*4/N}

      ifdimdist cm>5pt

        draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt)

         node[anchor=north,lnode] {$x_{X}$}; 

                else

        ifnumX=8

            fi

          fi  

        fi

      fi

    fi

   }

 draw (5,3pt) -- (5,0pt)

 node[anchor=north west,xshift=-2pt,lnode]{$b$};

 %draw (1,3pt) -- (1,0pt)

 % node[anchor=north west,xshift=-2pt,lnode]{$a$};

 node at (5.3,5) [text=red] {$f(x)$};

 coordinate (end) at (5.05,{f(5.05)});

 draw (5,3pt) -- (5,0pt) node[anchor=north west,xshift=-2pt,lnode]{$b$};

 draw (5,0)--(5,{f(5)});

 draw [-latex] (-0.5,0) -- (6,0) node (xaxis) [below] {$x$};

 draw [-latex] (0,-0.5) -- (0,5) node [left] {$y$};            

 draw[domain=.5:5.3,samples=200,variable=x,red,<->,thick] plot ({x},{f(x)});

node at (5.3,5) [text=red] {$f(x)$};             

end{tikzpicture}}



end{document}


This produces an error but outputs:



enter image description here



I am trying to use an existing program written by Marmot to create



enter image description here






tikz-pgf foreach







share|improve this question














documentclass{article}

usepackage{tikz}



begin{document}





 foreach N in {8}

 {begin{tikzpicture}[scale=1.2,declare function={f(x)=((1/3)*(x)^(3)-3* 

            (x)^(2)+8*x-3;},

       lnode/.style={fill=white,font=normalsize,inner sep=0pt,text height=1.5em}]

   pgfmathtruncatemacro{M}{1}

    coordinate (start) at (.8,{f(.8)});

    foreach X [remember=X as LastX (initially 0)] in {1,2,3,4,...,8}

     ifnumX<5

     {draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

    draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

   path  (1+LastX*4/N,0pt) coordinate (xX);

    ifnumX=1

   draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt) coordinate (xX)

   node[anchor=north east,xshift=2pt,lnode]  {$a=x_{X}$};

  else

   pgfmathtruncatemacro{itest}{mod(X,M)}

   ifnumitest=0

      pgfmathsetmacro{dist}{4-LastX*4/N}

      ifdimdist cm>5pt

        draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt)

         node[anchor=north,lnode] {$x_{X}$}; 

                else

        ifnumX=8

            fi

          fi  

        fi

      fi

    fi

   }

 draw (5,3pt) -- (5,0pt)

 node[anchor=north west,xshift=-2pt,lnode]{$b$};

 %draw (1,3pt) -- (1,0pt)

 % node[anchor=north west,xshift=-2pt,lnode]{$a$};

 node at (5.3,5) [text=red] {$f(x)$};

 coordinate (end) at (5.05,{f(5.05)});

 draw (5,3pt) -- (5,0pt) node[anchor=north west,xshift=-2pt,lnode]{$b$};

 draw (5,0)--(5,{f(5)});

 draw [-latex] (-0.5,0) -- (6,0) node (xaxis) [below] {$x$};

 draw [-latex] (0,-0.5) -- (0,5) node [left] {$y$};            

 draw[domain=.5:5.3,samples=200,variable=x,red,<->,thick] plot ({x},{f(x)});

node at (5.3,5) [text=red] {$f(x)$};             

end{tikzpicture}}



end{document}


This produces an error but outputs:



enter image description here



I am trying to use an existing program written by Marmot to create



enter image description here






tikz-pgf foreach




tikz-pgf foreach






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 3 hours ago









MathScholarMathScholar

1,04129




1,04129








  • 2





    The error goes away if you move the first ifnum into the group: {ifnumX<5 nstead of ifnumX<5{.

    – marmot
    3 hours ago











  • @Marmot yes its working now

    – MathScholar
    3 hours ago














  • 2





    The error goes away if you move the first ifnum into the group: {ifnumX<5 nstead of ifnumX<5{.

    – marmot
    3 hours ago











  • @Marmot yes its working now

    – MathScholar
    3 hours ago








2




2





The error goes away if you move the first ifnum into the group: {ifnumX<5 nstead of ifnumX<5{.

– marmot
3 hours ago





The error goes away if you move the first ifnum into the group: {ifnumX<5 nstead of ifnumX<5{.

– marmot
3 hours ago













@Marmot yes its working now

– MathScholar
3 hours ago





@Marmot yes its working now

– MathScholar
3 hours ago










1 Answer
1






active

oldest

votes


















4














Do you want something like this?



documentclass{article}

usepackage{tikz}



begin{document}

 foreach N in {8}

 {begin{tikzpicture}[scale=1.2,declare function={f(x)=((1/3)*(x)^(3)-3* 

            (x)^(2)+8*x-3;},

       lnode/.style={fill=white,font=normalsize,inner sep=0pt,text height=1.5em}]

   pgfmathtruncatemacro{M}{1}

    coordinate (start) at (.8,{f(.8)});

    foreach X [remember=X as LastX (initially 0)] in {1,2,3,4,...,N}     

     {ifnumX<5 %<-level 1

       draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

       draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

       path  (1+LastX*4/N,0pt) coordinate (xX);

       ifnumX=1 %<-level 2

        draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt) coordinate (xX)

         node[anchor=north east,xshift=2pt,lnode]  {$a=x_{X}$};

       else

        pgfmathtruncatemacro{itest}{mod(X,M)}

        ifnumitest=0 %<-level 3

         pgfmathsetmacro{dist}{4-LastX*4/N}

         ifdimdist cm>5pt %<-level 4

          draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt)

          node[anchor=north,lnode] {$x_{X}$}; 

         fi %<-level 4 

        fi %<-level 3

       fi %<-level 2

      else

       ifnumX=N %<-level 2

        draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

        draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

        path (1+4*4/N,{f(1+LastX*4/N)/2}) -- (1+LastX*4/N,{f(1+LastX*4/N)/2}) 

            node[midway,font=hugebfseries]{dots};

       fi %<-level 2

      fi %<-level 1

   }

 draw (5,3pt) -- (5,0pt)

 node[anchor=north west,xshift=-2pt,lnode]{$b$};

 %draw (1,3pt) -- (1,0pt)

 % node[anchor=north west,xshift=-2pt,lnode]{$a$};

 node at (5.3,5) [text=red] {$f(x)$};

 coordinate (end) at (5.05,{f(5.05)});

 draw (5,3pt) -- (5,0pt) node[anchor=north west,xshift=-2pt,lnode]{$b$};

 draw (5,0)--(5,{f(5)});

 draw [-latex] (-0.5,0) -- (6,0) node (xaxis) [below] {$x$};

 draw [-latex] (0,-0.5) -- (0,5) node [left] {$y$};            

 draw[domain=.5:5.3,samples=200,variable=x,red,<->,thick] plot ({x},{f(x)});

node at (5.3,5) [text=red] {$f(x)$};             

end{tikzpicture}}

end{document}


enter image description here






share|improve this answer


























  • this looks great. I will look at the code later today . Again thanks for your help. I knew what to but this level of if else statements was difficult.

    – MathScholar
    2 hours ago













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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









4














Do you want something like this?



documentclass{article}

usepackage{tikz}



begin{document}

 foreach N in {8}

 {begin{tikzpicture}[scale=1.2,declare function={f(x)=((1/3)*(x)^(3)-3* 

            (x)^(2)+8*x-3;},

       lnode/.style={fill=white,font=normalsize,inner sep=0pt,text height=1.5em}]

   pgfmathtruncatemacro{M}{1}

    coordinate (start) at (.8,{f(.8)});

    foreach X [remember=X as LastX (initially 0)] in {1,2,3,4,...,N}     

     {ifnumX<5 %<-level 1

       draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

       draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

       path  (1+LastX*4/N,0pt) coordinate (xX);

       ifnumX=1 %<-level 2

        draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt) coordinate (xX)

         node[anchor=north east,xshift=2pt,lnode]  {$a=x_{X}$};

       else

        pgfmathtruncatemacro{itest}{mod(X,M)}

        ifnumitest=0 %<-level 3

         pgfmathsetmacro{dist}{4-LastX*4/N}

         ifdimdist cm>5pt %<-level 4

          draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt)

          node[anchor=north,lnode] {$x_{X}$}; 

         fi %<-level 4 

        fi %<-level 3

       fi %<-level 2

      else

       ifnumX=N %<-level 2

        draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

        draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

        path (1+4*4/N,{f(1+LastX*4/N)/2}) -- (1+LastX*4/N,{f(1+LastX*4/N)/2}) 

            node[midway,font=hugebfseries]{dots};

       fi %<-level 2

      fi %<-level 1

   }

 draw (5,3pt) -- (5,0pt)

 node[anchor=north west,xshift=-2pt,lnode]{$b$};

 %draw (1,3pt) -- (1,0pt)

 % node[anchor=north west,xshift=-2pt,lnode]{$a$};

 node at (5.3,5) [text=red] {$f(x)$};

 coordinate (end) at (5.05,{f(5.05)});

 draw (5,3pt) -- (5,0pt) node[anchor=north west,xshift=-2pt,lnode]{$b$};

 draw (5,0)--(5,{f(5)});

 draw [-latex] (-0.5,0) -- (6,0) node (xaxis) [below] {$x$};

 draw [-latex] (0,-0.5) -- (0,5) node [left] {$y$};            

 draw[domain=.5:5.3,samples=200,variable=x,red,<->,thick] plot ({x},{f(x)});

node at (5.3,5) [text=red] {$f(x)$};             

end{tikzpicture}}

end{document}


enter image description here






share|improve this answer


























  • this looks great. I will look at the code later today . Again thanks for your help. I knew what to but this level of if else statements was difficult.

    – MathScholar
    2 hours ago


















4














Do you want something like this?



documentclass{article}

usepackage{tikz}



begin{document}

 foreach N in {8}

 {begin{tikzpicture}[scale=1.2,declare function={f(x)=((1/3)*(x)^(3)-3* 

            (x)^(2)+8*x-3;},

       lnode/.style={fill=white,font=normalsize,inner sep=0pt,text height=1.5em}]

   pgfmathtruncatemacro{M}{1}

    coordinate (start) at (.8,{f(.8)});

    foreach X [remember=X as LastX (initially 0)] in {1,2,3,4,...,N}     

     {ifnumX<5 %<-level 1

       draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

       draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

       path  (1+LastX*4/N,0pt) coordinate (xX);

       ifnumX=1 %<-level 2

        draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt) coordinate (xX)

         node[anchor=north east,xshift=2pt,lnode]  {$a=x_{X}$};

       else

        pgfmathtruncatemacro{itest}{mod(X,M)}

        ifnumitest=0 %<-level 3

         pgfmathsetmacro{dist}{4-LastX*4/N}

         ifdimdist cm>5pt %<-level 4

          draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt)

          node[anchor=north,lnode] {$x_{X}$}; 

         fi %<-level 4 

        fi %<-level 3

       fi %<-level 2

      else

       ifnumX=N %<-level 2

        draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

        draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

        path (1+4*4/N,{f(1+LastX*4/N)/2}) -- (1+LastX*4/N,{f(1+LastX*4/N)/2}) 

            node[midway,font=hugebfseries]{dots};

       fi %<-level 2

      fi %<-level 1

   }

 draw (5,3pt) -- (5,0pt)

 node[anchor=north west,xshift=-2pt,lnode]{$b$};

 %draw (1,3pt) -- (1,0pt)

 % node[anchor=north west,xshift=-2pt,lnode]{$a$};

 node at (5.3,5) [text=red] {$f(x)$};

 coordinate (end) at (5.05,{f(5.05)});

 draw (5,3pt) -- (5,0pt) node[anchor=north west,xshift=-2pt,lnode]{$b$};

 draw (5,0)--(5,{f(5)});

 draw [-latex] (-0.5,0) -- (6,0) node (xaxis) [below] {$x$};

 draw [-latex] (0,-0.5) -- (0,5) node [left] {$y$};            

 draw[domain=.5:5.3,samples=200,variable=x,red,<->,thick] plot ({x},{f(x)});

node at (5.3,5) [text=red] {$f(x)$};             

end{tikzpicture}}

end{document}


enter image description here






share|improve this answer


























  • this looks great. I will look at the code later today . Again thanks for your help. I knew what to but this level of if else statements was difficult.

    – MathScholar
    2 hours ago
















4












4








4







Do you want something like this?



documentclass{article}

usepackage{tikz}



begin{document}

 foreach N in {8}

 {begin{tikzpicture}[scale=1.2,declare function={f(x)=((1/3)*(x)^(3)-3* 

            (x)^(2)+8*x-3;},

       lnode/.style={fill=white,font=normalsize,inner sep=0pt,text height=1.5em}]

   pgfmathtruncatemacro{M}{1}

    coordinate (start) at (.8,{f(.8)});

    foreach X [remember=X as LastX (initially 0)] in {1,2,3,4,...,N}     

     {ifnumX<5 %<-level 1

       draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

       draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

       path  (1+LastX*4/N,0pt) coordinate (xX);

       ifnumX=1 %<-level 2

        draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt) coordinate (xX)

         node[anchor=north east,xshift=2pt,lnode]  {$a=x_{X}$};

       else

        pgfmathtruncatemacro{itest}{mod(X,M)}

        ifnumitest=0 %<-level 3

         pgfmathsetmacro{dist}{4-LastX*4/N}

         ifdimdist cm>5pt %<-level 4

          draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt)

          node[anchor=north,lnode] {$x_{X}$}; 

         fi %<-level 4 

        fi %<-level 3

       fi %<-level 2

      else

       ifnumX=N %<-level 2

        draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

        draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

        path (1+4*4/N,{f(1+LastX*4/N)/2}) -- (1+LastX*4/N,{f(1+LastX*4/N)/2}) 

            node[midway,font=hugebfseries]{dots};

       fi %<-level 2

      fi %<-level 1

   }

 draw (5,3pt) -- (5,0pt)

 node[anchor=north west,xshift=-2pt,lnode]{$b$};

 %draw (1,3pt) -- (1,0pt)

 % node[anchor=north west,xshift=-2pt,lnode]{$a$};

 node at (5.3,5) [text=red] {$f(x)$};

 coordinate (end) at (5.05,{f(5.05)});

 draw (5,3pt) -- (5,0pt) node[anchor=north west,xshift=-2pt,lnode]{$b$};

 draw (5,0)--(5,{f(5)});

 draw [-latex] (-0.5,0) -- (6,0) node (xaxis) [below] {$x$};

 draw [-latex] (0,-0.5) -- (0,5) node [left] {$y$};            

 draw[domain=.5:5.3,samples=200,variable=x,red,<->,thick] plot ({x},{f(x)});

node at (5.3,5) [text=red] {$f(x)$};             

end{tikzpicture}}

end{document}


enter image description here






share|improve this answer















Do you want something like this?



documentclass{article}

usepackage{tikz}



begin{document}

 foreach N in {8}

 {begin{tikzpicture}[scale=1.2,declare function={f(x)=((1/3)*(x)^(3)-3* 

            (x)^(2)+8*x-3;},

       lnode/.style={fill=white,font=normalsize,inner sep=0pt,text height=1.5em}]

   pgfmathtruncatemacro{M}{1}

    coordinate (start) at (.8,{f(.8)});

    foreach X [remember=X as LastX (initially 0)] in {1,2,3,4,...,N}     

     {ifnumX<5 %<-level 1

       draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

       draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

       path  (1+LastX*4/N,0pt) coordinate (xX);

       ifnumX=1 %<-level 2

        draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt) coordinate (xX)

         node[anchor=north east,xshift=2pt,lnode]  {$a=x_{X}$};

       else

        pgfmathtruncatemacro{itest}{mod(X,M)}

        ifnumitest=0 %<-level 3

         pgfmathsetmacro{dist}{4-LastX*4/N}

         ifdimdist cm>5pt %<-level 4

          draw (1+LastX*4/N,3pt) -- (1+LastX*4/N,0pt)

          node[anchor=north,lnode] {$x_{X}$}; 

         fi %<-level 4 

        fi %<-level 3

       fi %<-level 2

      else

       ifnumX=N %<-level 2

        draw[fill=orange!40!white] (1+LastX*4/N,0) rectangle (1+X*4/N,{f(1+LastX*4/N)});

        draw[red,fill=red] (1+LastX*4/N,{f(1+LastX*4/N)}) circle (1.4pt) ;

        path (1+4*4/N,{f(1+LastX*4/N)/2}) -- (1+LastX*4/N,{f(1+LastX*4/N)/2}) 

            node[midway,font=hugebfseries]{dots};

       fi %<-level 2

      fi %<-level 1

   }

 draw (5,3pt) -- (5,0pt)

 node[anchor=north west,xshift=-2pt,lnode]{$b$};

 %draw (1,3pt) -- (1,0pt)

 % node[anchor=north west,xshift=-2pt,lnode]{$a$};

 node at (5.3,5) [text=red] {$f(x)$};

 coordinate (end) at (5.05,{f(5.05)});

 draw (5,3pt) -- (5,0pt) node[anchor=north west,xshift=-2pt,lnode]{$b$};

 draw (5,0)--(5,{f(5)});

 draw [-latex] (-0.5,0) -- (6,0) node (xaxis) [below] {$x$};

 draw [-latex] (0,-0.5) -- (0,5) node [left] {$y$};            

 draw[domain=.5:5.3,samples=200,variable=x,red,<->,thick] plot ({x},{f(x)});

node at (5.3,5) [text=red] {$f(x)$};             

end{tikzpicture}}

end{document}


enter image description here







share|improve this answer














share|improve this answer



share|improve this answer








edited 3 hours ago

























answered 3 hours ago









marmotmarmot

105k4124236




105k4124236













  • this looks great. I will look at the code later today . Again thanks for your help. I knew what to but this level of if else statements was difficult.

    – MathScholar
    2 hours ago





















  • this looks great. I will look at the code later today . Again thanks for your help. I knew what to but this level of if else statements was difficult.

    – MathScholar
    2 hours ago



















this looks great. I will look at the code later today . Again thanks for your help. I knew what to but this level of if else statements was difficult.

– MathScholar
2 hours ago







this looks great. I will look at the code later today . Again thanks for your help. I knew what to but this level of if else statements was difficult.

– MathScholar
2 hours ago




















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