\documentclass[11pt,a4paper]{article}
\usepackage[utf8x]{inputenc}
\usepackage{ucs}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage[francais]{babel} 
%\usepackage[babel=true,kerning=true]{microtype}
\usepackage[margin=1cm, includefoot]{geometry} 

\usepackage{pgf,tikz}
\usepackage{tkz-tab}
\usetikzlibrary{arrows}
\usetikzlibrary{patterns}

\usepackage{wrapfig} 

\DeclareMathOperator{\e}{e} %pour un e droit dans les formules
\title{Tableaux de variation avec Tikz et tkz-tab}
\date{}

\begin{document}
\maketitle



Tableau 1 (ln) :

\begin{tikzpicture}
\tkzTabInit[espcl=6]{$x$/1,$\ln'(x)$/1,$\ln(x)$/2}{$0$,$+\infty$}
\tkzTabLine{d,+,}
\tkzTabVar{D-/$-\infty$,+/$+\infty$,}
\tkzTabVal{1}{2}{0.4}{1}{0}
\tkzTabVal{1}{2}{0.67}{$\e$}{1}
\end{tikzpicture}

\bigskip

Tableau 2 (racine) :

\begin{tikzpicture}
\tkzTabInit[lgt=3,espcl=6]{$x$/1,$f'(x)$/1,$f(x)=\sqrt{x}$/2}{$0$,$+\infty$}
\tkzTabLine{d,+,}
\tkzTabVar{-/0,+/$+\infty$,}
\end{tikzpicture}

ou :

\begin{tikzpicture}
\tkzTab[lgt=3,espcl=6]{$x$/1,$f'(x)$/1,$f(x)=\sqrt{x}$/2}{$0$,$+\infty$}
{d,+,}
{-/0,+/$+\infty$,}
\end{tikzpicture}

\bigskip

Tableau 3 (inverse) :

\begin{tikzpicture}
\tkzTabInit[lgt=3,espcl=6]{$x$/1,$f'(x)=-\dfrac{1}{\ x^2}$/1,$f(x)=\dfrac{1}{x}$/2}{$-\infty$,$0$,$+\infty$}
\tkzTabLine{,-,d,-,}
\tkzTabVar{+/0,-D+/$-\infty$/$+\infty$,-/0}
\end{tikzpicture}

ou :

\begin{tikzpicture}
\tkzTab[lgt=3,espcl=6]{$x$/1,$f'(x)=-\dfrac{1}{\ x^2}$/1,$f(x)=\dfrac{1}{x}$/2}{$-\infty$,$0$,$+\infty$}
{,-,d,-,}
{+/0,-D+/$-\infty$/$+\infty$,-/0}
\end{tikzpicture}

\bigskip

Tableau 4 (\(f(x)=\dfrac{x^2+4}{x}\)):
		
\begin{tikzpicture}
\tkzTabInit[]{\(x$/1,$f'(x)\)/1,\(f(x)\)/2}{\(-\infty\),\(-2\),\(0\),2,\(+\infty\)}
\tkzTabLine{,+,z,-,d,-,z,+,}
\tkzTabVar{-/\(-\infty\),+/-4,-D+/$-\infty$/$+\infty$,-/4,+/\(+\infty\)}
\end{tikzpicture}

ou :

\begin{tikzpicture}
\tkzTab[]{\(x$/1,$f'(x)\)/1,\(f(x)\)/2}{\(-\infty\),\(-2\),\(0\),2,\(+\infty\)}
{,+,z,-,d,-,z,+,}
{-/\(-\infty\),+/-4,-D+/$-\infty$/$+\infty$,-/4,+/\(+\infty\)}
\end{tikzpicture}

\bigskip


Tableau 5 (cos):

\begin{tikzpicture}
\tkzTabInit{$x$/1,$-\sin(x)$/1,$\cos(x)$/2}{$0$,$\pi$,$2\pi$}
\tkzTabLine{z,-,z,+,z}
\tkzTabVar{+/$1$,-/$-1$,+/$1$}
\tkzTabVal{1}{2}{0.5}{$\dfrac{\pi}{2}$}{0}
\tkzTabVal{2}{3}{0.5}{$\dfrac{3\pi}{2}$}{0}
\end{tikzpicture}

\bigskip

Tableau 6 (sin) :

\begin{tikzpicture}
\tkzTabInit{$x$/1,$\cos(x)$/1,$\sin(x)$/2}{$0$,$\dfrac{\pi}{2}$,$\dfrac{3\pi}{2}$,$2\pi$}
\tkzTabLine{,+,z,-,z,+,}
\tkzTabVar{-/$0$,+/$1$,-/$-1$,+/$0$}
\tkzTabVal{2}{3}{0.5}{$\pi$}{0}
\end{tikzpicture}

\bigskip

Tableau 7 :

\begin{center}
\begin{tikzpicture}
\tkzTabInit{\(x\)/1,\(f(x)\)/1}{5,\(\alpha\),60}
\tkzTabLine{,-,z,+,}
\end{tikzpicture}
\end{center}



\end{document}