Need to correct the matlab code for the question.

Write the Matlab code for the above question.

I have written the following code, but there is some error..after Power=Torque*angular velocity.

Error in code, "Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parentheses. "

Power=Torque*angular velocity

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

Answer 1

[Ghazwan]

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

[Ghazwan]

you just need to remove the first line or put "%" at the beginning.

[Vipul]

I tried, but there is another here down

for following line

>> T=torque(w,a,b);

Unrecognized function or variable 'torque'.