-3.5 4 setxrange
-.1 .5 setyrange
20 setxunit
.2 setxyrapport
10 setfontsize
/sigma 1 def
/m 0 def
/t 1.67 def
/f {
m sub sigma div
dup mul
-2 div
Exp
1
2 pi mul sqrt sigma mul
div mul
} def
/hstep 3 def
traceaxes
axesarrow
xmin t {f} Hachcourbe
t xtick
%t dup f point
gsave
newpath
pointilles
[t dup f dupp projx] ligne
stroke
grestore
1.2 setlinewidth
{f} courbe
setTimesItalic
(O) 0 0 dltext
(t) t 0 dctext
/fillstyle {blanc fill} def
/linearc .03 def
/dx_boxit .2 def
/dy_boxit .2 def
0 setlinewidth
<tex>
$\Pi (t)$
</tex>
boxit
-.5 dup f
-.5 0
milieu cctexlabel
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