f(x) = sin(x-.5)

plot(f,0,2*pi,50, "canvas:#dddddd","background:lightGray",
"title:sin(x-.5)","labels:x:sin(x-.5)","frame:gray","xtickmarks:0:2", "ytickmarks:0:.5","star:8", "step:2:4")

plot(sin,0,2*pi,50,"red","square:red:nofill:8", "step:4:4")