25 setxunit
7.5 setborder
90 setangle_repere
-1 1 setxrange
-3 1 setyrange
1 1 settkstep
.5 .5 setsubtkstep
2 2 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
unites
.75 setlinewidth
continu
bleu
/X {settvar
#rpn# Sin (t)*sin (t)*sin (t)
} def
/Y {settvar
#rpn# Cos(t) - Cos(t)*Cos(t)*Cos(t)*Cos(t)
} def
0 pi {X} {Y} Courbeparam
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