5 setxyrapport
25 setxunit
7.5 setborder
90 setangle_repere
-15 15 setxrange
-8 8 setyrange
1 1 settkstep
.5 .5 setsubtkstep
2 2 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
unites
/f {setxvar
#rpn# 3*Sin (x) * Cos (4*x)
} def
/g {setxvar
#rpn# 1/2x
} def
gsave
bleu
.75 setlinewidth
continu
{f} courbe
grestore
gsave
rouge
.75 setlinewidth
mixte
xmin .01 neg {g} Courbe
.01 xmax {g} Courbe
grestore
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