Fichier 6553.jps — Modifié le 27 Octobre 2009 à 11 h 22

6553.pdf
Source
300 setwidth
300 setheight
7.5 setborder
-1.2 1.2 setxrange
-1.2 1.2 setyrange
jpegmode
/quadrillagegray 1 def
1 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 .2 500 pi mul t mul sin mul add
} def
  0  2 pi mul settrange
gsave
   1 setcurvelinewidth
   continu
   rouge   (R) courbepolar
grestore