18 setfontsize
-5 5 setxrange
-5 5 setyrange
/f {
coTan
} def
/val 3.14 def
40 setxunit
[1 1 .5 .5 .1 .1] {orange} Quadrillage
tracerepere
marks
gsave
bleu
1.75 setlinewidth
0.1 val {f} Courbe
val neg -0.1 {f} Courbe
val neg pi sub val neg .1 sub {f} Courbe
val pi add val .1 add {f} Courbe
grestore
setTimesItalic
(O) O drtext
<tex>
$$
y = \cotan x
$$
</tex>
/dx_boxit 3 def
/dy_boxit 3 def
/linearc .05 def
/fillstyle {jaune fill} def
boxit
-3.5 2.5 [2 dup] cctexlabel
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