tkz-plot2d

A collection of plots created with the TikZ-based tkz-plot2d package. Provides among other things, convenient macros for creating axes and grids.

Requires GNUPLOT. Documentation only available in French.

Edit and compile if you like:

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% Demonstration of tkz-plot2d
% Author: Alain Matthes
% Note: Requires GNUPLOT
\documentclass{article}
\usepackage[usenames,dvipsnames]{xcolor}
\usepackage{tikz,tkz-plot2d,amsmath}
\usetikzlibrary{arrows}%
\usepackage[np,autolanguage]{numprint}
\begin{document}
\begin{tikzpicture}[xscale=4,yscale=1]
    \tkzinit[xmax=3,ymax=3,ymin=-4];
    \tkzgrid
    \tkzx
    \tkzy
    \tkzfct[color=red](0.35..3){-3/(x*x) +4/(3*x-1)}
    \tkzfct[color=blue](0.35..3){-3/(x*x) +27/(4*(3*x-1))}
    \tkzfct[color=orange](0.35..3){-3/(x*x) +8/(3*x-1)}
    \tkzfct[color=green](0.35..3){-3/(x*x) +7/(3*x-1)}
    \node[draw,inner sep =10pt,fill=orange!30] at (2,-2)%
        {$f(x)=-\dfrac{3}{x^2}+\dfrac{8\alpha}{3x-1}$%
    \hspace{.5cm} avec%
    \ $\alpha \in%
    \left\{\dfrac{1}{2}~;~\dfrac{27}{32}~;~\dfrac{7}{8}~;~1\right\}$};
\end{tikzpicture}%
%
\begin{tikzpicture}[scale=1]
    \tkzinit[xmin=-2,xmax=3,ymax=3]
    \tkzgrid[color=orange](-2,0)(3,3)
    \tkzx[orig]
    \tkzy
    \tkzfct[label = false,%
    samples = 200,%
    lw = 1pt,
    color = red](-1..2)%
    {(x*x*x+x*x)**(0.5)}
    \tkztg{\tkzfcta}(0)
    \tkztxt[style = {draw},%
 
 
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