Présentation de 2733.jps

30 setxunit
7.5 setborder
-1.5 1.5 setxrange
-1.5 1.5 setyrange
jpegmode
/quadrillagegray 0.4 def
1 setquadrillagexstep
1 setquadrillageystep
quadrillage
1 1 settkstep
.5 .5 setsubtkstep
1 1 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
0.75 setlinewidth
continu
bleu
/X {settvar
#rpn#   Cos (t)^3
} def
/Y {settvar
#rpn#   Sin (t) ^3
} def
 0 2 pi mul  {X} {Y} Courbeparam