25 setxunit
7.5 setborder
90 setangle_repere
-5 5 setxrange
-1.5 1.5 setyrange
\pi/2 \pi/2 settkstep
.5 .5 setsubtkstep
\pi/2 \pi/2 setmkstep
ticks
traceaxes
axesarrow
unites
/f {setxvar
#rpn# cos(x)
} def
gsave
bleu
.75 setlinewidth
pointilles
{f} courbe
grestore
gsave
bleu
continu
/hstep 4 store
/hangle 15 store
2 3 {pop ymax 1 add} {f} Hachcourbes
grestore
gsave
orange
continu
/hstep 6 store
/hangle 45 store
{f} {g} hachcourbes
grestore
gsave
gris
continu
/hstep 4 store
/hangle -45 store
{pop ymin 1 sub} {g} hachcourbes
grestore
2.8 settailletangente
1 {f} tangente
2 {f} tangente
3 {f} tangente
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