New to MATLAB so need help with following

Given the following equation,

Given, d0=0.1 & d1=0.01 and model depends on value of b.

If x0=10 I need to investigate behavior of xn for large n for b = 0.1, 0.2, 2.3, 2.6, 3

Can anyone help me with the syntax I need to do this? There are many more situations I need to consider but if I can get this one syntax, I will be able to understand the rest.

[darova]

I CAN help you. What difficulties do you have?

[Jan]

Duplicate thread. https://www.mathworks.com/matlabcentral/answers/469762-new-to-matlab-so-need-help-with-following

Answer 1

[Basil C.]

You could first declare an array of x element knowing that you need to find value upto X(6)

clc
clear all
close all
N=6; %if you want to find the value of x(6)
x=zeros(1,N); %declare an array

Declare the given data

b=0.1; % change the value of b accordingly
d0=0.1;
d1=0.01;
x(1)=10; %this stores the value of x0

Then use a for loop to find the value

for n=1:N-1
    x(n+1)=x(n)+b*x(n)-d0*x(n)-d1*x(n)^2;
end

The value upto x6 will be stored in the array 'x'

Answer 2

[Image Analyst]

You need a loop over b outside the computation of the x vector:

d0=0.1;
d1=0.01;
x(1)=10;  % First x
N = 5; % or however long you want the final x to be.
b = [0.1, 0.2, 2.3, 2.6, 3]
for k = 1 : length(b)
        for n = 1 : length(x) - 1
              x(n+1) = x(n) + b(k) * x(n) - d0*x(n) - d1 * x(n)^2;
        end
        % Now do something with x, like plot it or whatever.
end