Présentation de 2497.jps

25 setxunit
7.5 setborder
90 setangle_repere
-6 6 setxrange
-6 6 setyrange
1 1 settkstep
.5 .5 setsubtkstep
2 2 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
.75 setlinewidth
continu
bleu
/X {settvar
#rpn#   4*Cos(t)-2* Cos (2*t)
} def
/Y {settvar
#rpn#   4*Sin(t)+2*Sin (2*t)
} def
 0 2 pi mul  {X} {Y} Courbeparam