Présentation de 060.jps

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
grestore