%% auteur : 

30 setxunit
30 setyunit
7.5 setborder
90 setangle_repere
-5 5 setxrange
-5 5 setyrange
[1 1 .5 .5 .1 .1] {orange} Quadrillage
.5 .5 setsubtkstep
1 1 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
unites
/f {setxvar
#rpn#   1/x
} def
setTimes
boxit
(f(x) = 1/x) 2 4 cctext


/A {-2 -.5} def
/A' {2 .5} def
/B {-2 0} def
/C {2 0} def
[A A'] points
pointilles
[B A A' C] ligne


(A) A dltext
(A') A' urtext
(O) O drtext
setTimesItalic
(X) 4.5 -0.5 crtext
(Y) -0.5 4.5 urtext
gsave
   bleu
   .75 setlinewidth
   continu
   {f} courbe
grestore