Graphics, Figures & Tables ⇒ Re: How to draw an implicit function with Gnuplot

[tolyaua]

Hi!
When a function has an explicit form such as f(x)=0 it is easy to draw it in TeX with a help of gnuplot:

Code: Select all

%& -shell-escape
\documentclass[12pt]{report}
\usepackage[cp1251]{inputenc}
\usepackage{graphicx}
\usepackage{tikz}
\begin{document}

\begin{figure}[!ht]
  \centering
  \begin{tikzpicture}
  		\draw[smooth,very thick] plot[id=f1,domain=-2:2,samples=600] function {x*x};
 	\end{tikzpicture}
\end{figure}

\end{document}

But what about an implicit function f(x,y)=0, such as (sqrt(x^2 + y^2) -5)*(sqrt((x-2)^2+y^2)-0.1=0 ? How it can be drawn in TeX with gnupot?

[php1ic]

I've never used tikz, so don't know how it relates to gnuplot, but this page may be useful.

http://t16web.lanl.gov/Kawano/gnuplot/i ... lve-e.html

[tolyaua]

Thanks php1ic, I've already found this page. It tells how to draw in gnuplot but not how to draw in tikz using gnuplot.