verbatimtex
%&latex
\documentclass[11pt]{article}
\usepackage{fourier}
\usepackage{amsmath}
\begin{document}
etex

input mp-solid

invnormalelum:=-1;

figureespace(-10u,-10u,10u,10u);
Initialisation(300,45,35,10);
incolor:=0.5[jaune,white];
outcolor:=0.8[violet,white];
draw SurfZ("if X=0:if Y=0:10 else:10*sin(Y)/Y fi else:if Y=0:10*sin(X)/X else: 10*sin(X)/X*sin(Y)/Y fi fi",-10,10,-12,12,60,150);
label(btex $f(z)=10\times\dfrac{\sin x}x\dfrac{\sin y}y\mbox{ avec }\left\{\begin{array}{l}
  x\in[-10,10]\\
  y\in[-12,12]\\
  \end{array}
  \right.$ etex,u*(0,-4));
finespace;
end