Présentation de 2605.jps

25 setxunit
7.5 setborder
90 setangle_repere
-9 9 setxrange
-9 9 setyrange
1 1 settkstep
.5 .5 setsubtkstep
2 2 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
.75 setlinewidth
continu
bleu
/X {settvar
#rpn#   3*(2 * Cos (t)-Cos(2*t))
} def
/Y {settvar
#rpn#   3*(2* Sin (t)+Sin(2*t))
} def
 0 2 pi mul  {X} {Y} Courbeparam