25 setxunit
-1 14 setxrange
-1.5 6.7 setyrange
/K {1 3} def
/alpha 2 Exp def
/f {
setxvar
x 2 add x ln add x div
} def
/g {
setxvar
x 2 add x div
} def
/h {pop 1} def
2 setxmkstep
tracerepere
marks
alpha xtick
K dashpoint
.05 xmax {f} Courbe
gsave
pointilles
verythin setlinewidth
[alpha 0 alpha dup f] (-) ligne
thin setlinewidth
bleu
.05 xmax {g} Courbe
grestore
45 sethangle
alpha 1 {f} {g} Hachcourbes
%% l'asymptote
mixte
{h} courbe
setTimesItalic
(D) Xmin 1 drtext
(C) Xmax dup f ultext
(f) indice
(K) K urtext
(H) .4 dup g brtext
(x) xmax 0 dltext
(y) 0 .98 Ymax mul bltext
#tex# $e^2$
alpha 0 dctexlabel
#tex# $$C_f~: y={x+2+\ln x \over x}$$
6 4 uctexlabel
#tex# $$H~: y={x+2\over x}$$
6 3 uctexlabel
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