%Gilles Mora
1 setxyrapport
60 setxunit
7.5 setborder
90 setangle_repere
-1 5 setxrange
-2 3 setyrange
1 1 settkstep
.5 .5 setsubtkstep
2 2 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
%unites
/f {setxvar
#rpn# (x^5-5)/(x^4-6)-4
} def
/f' {setxvar
#rpn# 2*(x-3)
} def
/g {setxvar
#rpn# x
} def
gsave
noir
.75 setlinewidth
continu
0.1 10 {f} Courbe
grestore
$O$
0 0 [1 dup] dltexlabel
$x=a$
boxit
1 -1.5 [1.5 dup] dctexlabel