size 400,400
xrange -10,10
yrange -10,10
linewidth 2
fillcolor black
strokecolor yellow
rotationcenter 0,0
fontsize 28
slider 0,2*pi,400,30,angle degrees active, rotate...
plot red,5*sin(x)
filled
linewidth 1
opacity 150,50
fillcolor orange
angle 0,0,pi,0,0,blue
