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Write the matlab code for the following problem

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Vipul
Vipul 2022년 10월 8일
댓글: Vipul 2022년 10월 15일
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
  댓글 수: 4
parthiban
parthiban 2022년 10월 14일
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 2022년 10월 15일
Run the code in script and not in command prompt as it consist of functions

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Ghazwan
Ghazwan 2022년 10월 8일
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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