MATLAB Answers

Nazish
0

How to write this in matlab?

Asked by Nazish
on 28 Jul 2019
Latest activity Edited by madhan ravi
on 29 Jul 2019
How to write this equation in matlab?
f (xn) = x(n+1) = x(n)/a for 0 ≤ x(n) ≤ a
1−x(n)/1−a a ≤ x(n) ≤ 1
Where x0 is the initial value and xn ∈ [0,1]. The control parameter a ∈ (0,1) and when a is not equal to 0.5, system enters a chaotic state.

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1 Answer

Rik
Answer by Rik
on 28 Jul 2019
Edited by madhan ravi
on 29 Jul 2019

Because of the recursion limit (and other factors), it is smarter to implement this in a loop, instead of a recursive function.
The code below has some assumptions about your function you should check, but it shows the general idea.
x0=0.1;
N=30;
a=0.4;
x=zeros(N,1);
x(1)=x0;
for n=1:(N-1)
if 0<=x(n) && x(n)<a
x(n+1)= x(n)/a;
else
x(n+1)= (1-x(n))/(1-a);
end
end

  2 Comments

darova
on 29 Jul 2019
Please use tabs to maek your code more readable
for n=1:(N-1)
if 0<=x(n) && x(n)<a
x(n+1)= x(n)/a;
else
x(n+1)= (1-x(n))/(1-a);
end
end
Rik
on 29 Jul 2019
I'm on mobile so formatting is very annoying and time consuming.
If anyone with editing privileges sees this, feel free to edit. Otherwise I might fix it in a few days.

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