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Write the matlab code for the following problem

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Vipul
Vipul 2022-10-8
评论： Vipul 2022-10-15
Ran in:
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
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parthiban
parthiban 2022-10-14
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
Vipul 2022-10-15
Run the code in script and not in command prompt as it consist of functions

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采纳的回答

Ghazwan
Ghazwan 2022-10-8
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.

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