-2.5 4 setxrange
-3 3.5 setyrange
1.9 setxyrapport
60 setxunit
7.5 setborder
90 setangle_repere
-2 3.5 setxrange
-3 3.5 setyrange
%1 1 settkstep
%.5 .5 setsubtkstep
%2 2 setmkstep
traceaxes
axesarrow
setTimesItalic
%(x) 3.4 0 [1.8 dup] drtext
%(y) 0 3 [1.8 dup] ultext
%(O) O [1.8 dup] urtext
%unites
/f {setxvar
#rpn# (x^2+1)
} def
/g {setxvar
#rpn# 0
} def
2.2 setlinewidth
[-1 0 2 0] ligne
gsave
noir
0.5 setlinewidth
continu
-1.5 2.5 {f} Courbe
grestore
noir
/hwidth .2 def
/hstep 8 def
-1 2 {f} {g} Hachcourbes
<latex>
$-5$
</latex>
-1 0 [1.8 dup] dltexlabel
<latex>
$5$
</latex>
2 0 [1.8 dup] drtexlabel
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