200 setxunit
7.5 setborder
90 setangle_repere
-1.95 1.95 setxrange
-1.95 1.95 setyrange
.25 0.25 settkstep
.125 .125 setsubtkstep
.5 5 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
/R {settvar
#rpn# 1+2*Sin(23*t)
} def
0 2 pi mul settrange
gsave
.75 setlinewidth
continu
bleu
(R) courbepolar
grestore
|