Create Table of variation of log function and draw its graph using Tikz
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All you have to do in oder to get the two graphs on one page is to remove the LaTeX errors.
\documentclass{article}
\usepackage{pgfplots}
\pgfplotsset{width=10cm,compat=1.9}
\usepgfplotslibrary{external}
\usepackage{tikz,tkztab,amsmath}
\usetikzlibrary{arrows}
\newcommand\E{e}
\begin{document}
%
\begin{tikzpicture}
\coordinate (OR) at (0.00, 0.00);
\coordinate (LX) at (1.00, 0.00); % left x
\coordinate (RX) at (8.00, 0.00); % right x
\coordinate (BY) at (0.00, 5.00); % bottom y
\coordinate (TY) at (0.00, 3.00); % top y
%
% axa 0x
%
\draw[>][line width=1.00pt] (LX)  (RX);
\node[blue] at (7.8,0.4) {{\boldmath$x$}};
%
% axa 0y
%
\draw[>][line width=1.00pt] (BY)  (TY);
\node[right,blue] at (0.2, 2.8) {{\boldmath$y$}};
%
% ORIGIN
%
\filldraw [red] (OR) circle(2pt);
\node[red] at (0.2,0.3) {\textbf{\textit{0}}};
%
\draw[red,dotted,line width=0.75pt] (0.5, 0.0)  (0.5, 1.0);
\draw[red,dotted,line width=0.75pt] (0.6, 0.0)  (0.6, 1.0);
% graphic for LOGARITHM function
\draw[blue, line width=1.75pt, domain=0.005:7.00,samples=100] plot[smooth](\x, {ln(\x)}) node[right]{$\ln x$};
\end{tikzpicture}
\begin{tikzpicture}
\tikzset{arrow style/.style = {blue,>,> = latex',
shorten > = 6pt,
shorten < = 6pt}}
\tkzTabInit[espcl=4]{$x$ /1, $\ln x $ /1.5, $ \frac{1}{x}$ /2}{$0$ ,$1/\E$ , $+\infty$}%
\tkzTabLine{d,+,z,+,}
\tkzTabVar%
{ D/ / $\infty$ ,%
+/ \colorbox{black}{\textcolor{white}{$0$}}/ ,+/ $+\infty$ / }%
\end{tikzpicture}
\end{document}
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Author by
Youssra El Yossra Youssra
Updated on August 01, 2022Comments

Youssra El Yossra Youssra over 1 year
Really i have tried with the below code using share latex publisher for creating the table of variation of log function and it's graph using Tikz but i failed to get both of the graph and the table of variation in my page in the same time , i'm only got one of them , My question here is :
What is the problem in My code or my usepackage which forbid me to get the the two in my page?.
Note: Only i think in share latex using two documents class is not supported and is not allowed
\documentclass[11pt,a4paper]{report} \documentclass[border=3pt]{standalone} \documentclass[11pt]{scrartcl} \usepackage{arabtex} \usepackage[arabic]{babel} \usepackage[margin=0.5in]{geometry} \usepackage{pgfplots} \pgfplotsset{width=10cm,compat=1.9} \usepgfplotslibrary{external} \usepackage{tikz,tkztab,amsmath} \usetikzlibrary{arrows} %\usepgfplotslibrary{external} %\tikzexternalize \textLR{ \begin{document} % \begin{tikzpicture} \coordinate (OR) at (0.00, 0.00); \coordinate (LX) at (1.00, 0.00); % left x \coordinate (RX) at (8.00, 0.00); % right x \coordinate (BY) at (0.00, 5.00); % bottom y \coordinate (TY) at (0.00, 3.00); % top y % % axa 0x % \draw[>][line width=1.00pt] (LX)  (RX); \node[blue] at (7.8,0.4) {\textbf{\textit{x}}}; % % axa 0y % \draw[>][line width=1.00pt] (BY)  (TY); \node[right,blue] at (0.2, 2.8) {\textbf{\textit{ln x}}}; % % ORIGIN % \filldraw [red] (OR) circle(2pt); \node[red] at (0.2,0.3) {\textbf{\textit{0}}}; % \draw[red,dotted,line width=0.75pt] (0.5, 0.0)  (0.5, 1.0); \draw[red,dotted,line width=0.75pt] (0.6, 0.0)  (0.6, 1.0); % graphic for LOGARITHM function \draw[blue, line width=1.75pt, domain=0.005:7.00] plot[smooth](\x, {ln(\x)}); %\draw[blue, line width=1.75pt, domain=0.01:7.00] plot[smooth](\x, {ln(\x)}); % \end{tikzpicture} \end{document}} \textLR{ \begin{document} \textLR{ \begin{document} \begin{tikzpicture} \tikzset{arrow style/.style = {blue,>,> = latex', shorten > = 6pt, shorten < = 6pt}} \tkzTabInit[espcl=5]{$x$ /1, $\ln x $ /1.5, $ \frac{1}{x}$ /2}{$0$ ,$1/\E$ , $+\infty$}% \tkzTabLine{d,+,z,+,} \tkzTabVar% { D/ / $\infty$ ,% +/ \colorbox{black}{\textcolor{white}{$0$}}/ ,+/ $+\infty$ / }% \end{tikzpicture} \end{document}}

Michael Palmer over 6 yearsThe code seems garbled; for example, you have multiple
documentclass
declarations. Can you provide a minmal example that compiles (even though the output is not what you want)? 
Youssra El Yossra Youssra over 6 yearsI want the grah of log function with it's table of variation

hpekristiansen over 6 yearsWhen would using two
\documentclass
be supported? What would it do?
