18 setfontsize
-5 5 setxrange
-1 4 setyrange
/f {pop 1} def
50 setxunit
[1 1 .5 .5 .1 .1] {orange} Quadrillage
tracerepere
marks
gsave
bleu
1.75 setlinewidth
{f} courbe
grestore
setTimesItalic
(O) O drtext
<tex>
$$
y = 1
$$
</tex>
/dx_boxit 2 def
/dy_boxit 2 def
/fillstyle {jaune fill} def
/linearc .05 def
boxit
-2 2 [2 dup] cctexlabel
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