100 setxunit
7.5 setborder
90 setangle_repere
-1.5 1.5 setxrange
-1.5 1.5 setyrange
.5 0.5 settkstep
.25 .25 setsubtkstep
1 1 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
/R {settvar
#rpn# 1+.4*Sin(75*t)
} def
0 2 pi mul settrange
gsave
.75 setlinewidth
continu
bleu
(R) courbepolar
grestore
|