# How to plot an square ?

4 views (last 30 days)
Kenzitis KH on 2 Jun 2022
Commented: Kenzitis KH on 2 Jun 2022
Hi, do you know how to plot 4 signals as an square, I mean, every each line of a different colour creating an individual square or something like that.
I need to plot it with 4 analog inputs, on this case I'll use 4 pots with arduino... so.. anybody knows? Thank you.
Kenzitis KH on 2 Jun 2022
We're talking an it seems that the sum of the 4 analog inputs by the pots, must draw a single square

Kevin Holly on 2 Jun 2022
Edited: Kevin Holly on 2 Jun 2022
If it is 4 intersecting square waves, you could do this:
x = -10:0.001:10;
pi
ans = 3.1416
plot(x,(pi/2)*square(x))
hold on
plot(x,-(pi/2)*square(x))
plot((pi/2)*square(x)+(pi/2),x-(pi/2))
plot(-(pi/2)*square(x)+(pi/2),x-(pi/2))
ylim([-6,6])
xlim([-4,7])
Edit: Made it scatter for clarity
figure
scatter(x,(pi/2)*square(x),'.')
hold on
scatter(x,-(pi/2)*square(x),'.')
scatter((pi/2)*square(x)+(pi/2),x-(pi/2),'.')
scatter(-(pi/2)*square(x)+(pi/2),x-(pi/2),'.')
ylim([-6,6])
xlim([-4,7])
Kenzitis KH on 2 Jun 2022
Thanks 4 helping!!!
It supposed if you're summing the 4 pots, has to plot a square, plotting a square by using 4 pots.. something like that.