100 setxunit
7.5 setborder
90 setangle_repere
-1 1 setxrange
-1 1 setyrange
1 1 settkstep
.5 .5 setsubtkstep
2 2 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
/R {settvar
#rpn# (Sin (t))^2+((Cos(t))^2+1)*Sin(100*pi*t)
} def
0 20 pi mul settrange
gsave
.75 setlinewidth
continu
bleu
(R) courbepolar
grestore
|