# I am not getting a graph when I plot

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Nataly Almasri on 15 Sep 2020
Commented: John D'Errico on 15 Sep 2020
%Two arrays, one for pump voltage, another for the constant height
vp=[4 5 6 7 8 9 10];
h=[.009 .025 .048 .078 .11 .164 .20];
% system Parameters
Dc = 0.04445; % Diameter of tank in [m]
Do = 0.0047625; % Diameter of orifice in [m]
g = 9.81; % Gravitational acceleration in [m/s^2]
Ac = .0015518; % Cross-sectional area of tank based on diameter in [m^2]
Ao = .0000178; % Cross-sectional area of orifice based on diameter in [m^2]
%Kp = 0; % Pump constant in [m^3/s/V]
Cd = 0.15; % Unitless discharge coefficient between 0 and 1
%vp = 0; % Pump voltage in [V]
%Kp calculation
X=(2*g*h);
b=sqrt(X);
Kp=((Cd*Ao*b)/(vp));
%Plot simulation Results
%% Simulate System
%sim_time = 120; % Length of simulation in [s]
%sim Sim_OpenLoop.mdl % Execute simulation
figure(1);
%ylim([1.0*10^-07 5.0*10^-07]) %set x-axis range
xlim([4 10]) % Set y-axis range
plot(vp,Kp);

BOB MATHEW SYJI on 15 Sep 2020
Replace Kp=((Cd*Ao*b)/(vp)); as
Kp=((Cd*Ao*b)./(vp));

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Nataly Almasri on 15 Sep 2020
YAY!! that worked thank you so much!
BOB MATHEW SYJI on 15 Sep 2020
So, do you accept my answer??
John D'Errico on 15 Sep 2020