Can't get the sqrt function to work correctly

Hi,

I'm not very good at matlab but I can't figure why my function isn't graphing correctly. I think it has to do with the sqrt() function but I can't tell what I'm doing wrong. I've graphed it on my TI-84 which graphs it correctly. It's a conversion of water column pressure to air velocity.

h = 0:1:25;
P = 67.35187338.*sqrt(h);
plot(P)
hold on
title ('Velocity vs. Water Column')
xlabel('Water Column in inches')
ylabel('Velocity (ft/s)')

Answer 1

[Rik]

The only edits that are obvious to me are the unnecessary call to hold and the fact you don't provide the x-axis values to the plot function. That second one causes your plot not to start at 0, but at 1.

h = 0:1:25;
P = 67.35187338.*sqrt(h);
plot(h,P)
title ('Velocity vs. Water Column')
xlabel('Water Column in inches')
ylabel('Velocity (ft/s)')

[Alexander Sutherland]

Thank you!