25 setxunit
7.5 setborder
90 setangle_repere
-500 500 setxrange
-500 500 setyrange
50 50 settkstep
25 25 setsubtkstep
50 50 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
.75 setlinewidth
continu
bleu
/X {settvar
#rpn# 6*t-9*t^2+4*t^3
} def
/Y {settvar
#rpn# 6*t-3*t^2-4*t^3
} def
500 neg 500 {X} {Y} Courbeparam
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