This video explains how to implement the Fibonacci series algorithm using MATLAB function and Simulink Model in simple steps.

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MATLAB Source code:

function [outputArg] = myFibonacci(inputArg)

if inputArg <=0
outputArg = [];
return;
end

if inputArg == 1
outputArg = 0;
return
end

% outputArg = zeros(1, inputArg);

outputArg = [0 1];
for i=3:inputArg
outputArg = [outputArg outputArg(1, i-2)+outputArg(1, i-1)];
end

end

Simulink Model and output: