%% auteur : 

250 setxunit
7.5 setborder
90 setangle_repere
-0.1 1.2 setxrange
-0.1 1.2 setyrange
traceaxes
axesarrow
marks


/f {setxvar
   x 2 exp
} def
gsave
   noir
   2 setlinewidth
   continu
 0 1   {f} Courbe
grestore

/fillstyle {hachure} def
0 1 {f} Fillcourbe 

/A{1 0} def
/B{1 1} def

[A B] ligne
B dashpoint

<latex>
  $\mathcal{C}_f$
</latex>
5 3 [1.5 1.5]dctexlabel


<tex>
  $y=x^2$
</tex>
0.7 0.8 [1.5 1.5]dctexlabel

<tex>
  $O$
</tex>
0 0 [1.5 1.5]dltexlabel