Write the matlab code for the following problem

I have the following error in the code.

clc;clear all;close all;
w=1000:10:6000;
%Engine 1
a=0.03;
b=7.5e-6;
T=torque(w,a,b);
P=T*2*pi.*w/60;
figure(1)
plot(w,T,'LineWidth',1.5)
hold on
figure(2)
plot(w,P/1000,'LineWidth',1.5)
hold on

%Engine 2
a=0.02;
b=3.333e-6;
T=torque(w,a,b);
P=T*2*pi.*w/60;
figure(1)
plot(w,T,'LineWidth',1.5)
figure(2)
plot(w,P/1000,'LineWidth',1.5)

%Engine 3
a=0.015;
b=1.875e-6;
T=torque(w,a,b);
P=T*2*pi.*w/60;
figure(1)
plot(w,T,'LineWidth',1.5)
xlabel('{\omega}(rpm)')
ylabel('Torque (Nm)')
title('Torque Vs speed')
legend('Engine 1','Engine 2','Engine 3')

figure(2)
plot(w,P/1000,'LineWidth',1.5)
xlabel('{\omega}(rpm)')
ylabel('Power (kW)')
title('Power Vs speed')
legend('Engine 1','Engine 2','Engine 3')

function T=torque(w,a,b)
T=120+a*(w-1000)-b*(w-1000).^2;
end

[Torsten]

Works for me (see above).

[Vipul]

Thanks

[parthiban]

Hi Vipul & Torsten,

i am also facing same error in above program "T=torque(w,a,b);"

Could you share the working code & help me to resolve this issue.

Thank in advance

Parthiban V

[Vipul]

Run the code in script and not in command prompt as it consist of functions

Answer 1

[Ghazwan]

you just need to delete this line

Unrecognized function or variable 'torque'.

Also, depending on the version you have, you might need to put the function "torque" in a matlab file individially.

see this URL.

[Vipul]

Thanks