<div class="code">     
<pre class="verbatim"> 
%%%%%%%%%%%%%%%%%%%%%%%%
%      Donnees
%%%%%%%%%%%%%%%%%%%%%%%%
Iexa = log(2);
alpha = 1;
beta = 2;
N = 4;
h = (beta - alpha)/N;
x = [alpha:h:beta];
f = inline('1/x','x');
%%%%%%%%%%%%%%%%%%%%%%%%
% Corps du programme
%%%%%%%%%%%%%%%%%%%%%%%%
Irg = 0.0;
for i = 1:N
    Irg = Irg + h*f(x(i));
end
%%%%%%%%%%%%%%%%%%%%%%%%%%
% Affichage des resultats
%%%%%%%%%%%%%%%%%%%%%%%%%%
Irg   
Erg = abs(Iexa - Irg) 
%%%%%%%%%%%%%%%%%%%%%%%%
</pre>
</div> 