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I need exactly this curve in LaTeX:

target image displaying desired plot

Steven B. Segletes
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Jamal Farokhi
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    Welcome! What have you tried? And what do you want to do? I don't understand the use of 'drove' in this context. – cfr Jun 07 '16 at 21:51
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    Please don't vote to close a new user's first question 10 minutes after it is posted and never vote to close without leaving a comment explaining how the post can be improved. – cfr Jun 07 '16 at 21:55
  • @cfr Sorry. Won't do so again. – Canageek Jun 07 '16 at 21:55
  • Thank you. I need to some Latex code like this question: http://tex.stackexchange.com/questions/215379/plotting-and-labelling-points-on-a-graph – Jamal Farokhi Jun 07 '16 at 21:58
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    There are definitely ways to draw graphs in LaTeX, pgfplots is the very first thing that comes to mind, but I know little about it. However, don't run before you can walk. If you're really a beginner, why not just use some graphing software and insert the result as a figure. LaTeX's wonderful and it can certainly draw you graphs, but it is first and foremost a document preparation system. That's what it was designed for, it wouldn't be my first instinct to try to use it for everything, specialised software might make the job easier – Au101 Jun 07 '16 at 22:00

1 Answers1

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Here's a sketch with a curve closely looking like your curve: it's one of the standard elliptic cubics. I used pst-plot:

\documentclass[11pt, a4paper, x11names]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{fourier}

\usepackage{pst-plot}
\usepackage{pst-node}
\usepackage{auto-pst-pdf}
\def\f{sqrt(2.2*x*(x^2-4))}


\begin{document}

\psset{plotpoints=200, plotstyle=curve, algebraic, arrowinset=0.12, }%
\begin{pspicture*}(-4.5,-7.5)(5,8)
    \psaxes[linecolor=LightSteelBlue3, tickcolor=LightSteelBlue3, ticksize=-2pt 2pt, labels =none, arrows=->, ](0,0)(-4.5,-7.5)(5,8)[$x$, -120][$y$, -135]
    %
    \psset{linewidth=1.5pt, linecolor=IndianRed3}
    \psplot{-2}{0}{\f}%
    \psplot{2}{5}{\f}%
    \psplot{-2}{0}{-\f}%
    \psplot{2}{5}{-\f}%
\end{pspicture*}

\end{document}

enter image description here

Bernard
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