<div class="code">    
<pre class="verbatim">
x = [-pi/2: 0.0001:pi/2]; 
g = inline('sin(x)'); 
plot(x, g(x), '--', x, x, '-') 
grid on; 
ylabel('g(x)'); 
xlabel('x'); 
axis on; 
title('graphe de g'); 
</pre>
</div>