Fichier 6574.jps — Modifié le 27 Octobre 2009 à 11 h 29
250 setwidth
250 setheight
7.5 setborder
-1.2 1.2 setxrange
-1.2 1.2 setyrange
jpegmode
/quadrillagegray 0.6 def
.2 setquadrillagexstep
.2 setquadrillageystep
quadrillage
1 1 settkstep
.5 .5 setsubtkstep
2 2 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
/R {settvar
t sin t sin mul t cos t cos mul add 1 200 pi mul t mul sin mul add
} def
0 2 pi mul settrange
gsave
4 setcurvelinewidth
continu
magenta
(R) courbepolar
grestore