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Please help me understand my homework

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Abdullah Tamimi
Abdullah Tamimi on 10 Nov 2011
Closed: MATLAB Answer Bot on 20 Aug 2021
v(k+1)=v(k)+.0005(-.5*v(k)+c1*(75-v(k))+c2+h(k))
Create a MATLAB function CarOrbit.m with parameter inputs (c1, c2, hk) that plots the v(k) orbit. Plot the orbit for parameter values (c1, 0,−5). let c1=100, and determine stablity of the orbit
Here is the code i entered, and it kept giving me error message.
function carorbit(V1,C1,C2,H1,N)
V(1)=V1
C(1)=C1
C(2)=C2
H(1)=H1
t=[0:.01:N]
for k=[1:N-1]
V(k+1)=V(k)+.0005*(-.5*V(k)+C(1)*(75-V(k))+C(2)+H(k))
end
grid on
plot(t,V)

Answers (1)

Honglei Chen
Honglei Chen on 10 Nov 2011
It seems that you never compute your H(k). So once k>1, there is no value for H(k).
  2 Comments
Abdullah Tamimi
Abdullah Tamimi on 10 Nov 2011
awesome, so i changed H(k) to just H, and now it is telling me something about how it cannot plot because vectors are not the same
Honglei Chen
Honglei Chen on 11 Nov 2011
Well, your t is 0:0.01:N, which is 100*N+1 points long. But your V is only N points long, that's why they cannot be plotted. You redefine your t as 0:N-1, or 1:N, but it really depends your application.

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