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Hello Friends Thanks for your time.

Please help in plotting $f(x,y) = x^2 + y^2$ on a unit square with TikZ.

Thanks.

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up vote 6 down vote accepted

Here is a very basic approach derived from an example in the pgfplots manual.

\documentclass{minimal}
\usepackage{pgfplots}

\begin{document}
  \begin{tikzpicture}
    \begin{axis}[colorbar]
      \addplot3[surf,faceted color=blue,samples=15,domain=0:1,y domain=0:1]{x^2+y^2};
    \end{axis}
  \end{tikzpicture}
\end{document}

Desired modifications are left to the interested reader.


enter image description here

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@Donig. Thank you. – Mia Apr 20 '11 at 9:02

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