clear
close


x1 = [0:10]; 
y1 = x1*2;

x2 = [0:10]+0.5; 
y2 = x2*2;


plot2d("ll", x1, y1, -1);
plot2d(x1, y1*2, -2);
plot2d(x2, y2, -10);
//figure;
//plot2d(x2, y2, style=[":"]);