MATLAB - write a function called fib that accepts a single argument n which you

Question

MATLAB - write a function called fib that accepts a single argument n which you may assume is a positive integer. Your function will return a row vector containing the first n elements of the Fibonacci sequence. The Fibonacci sequence is a sequence of numbers that starts with 1,1, and each successive element is the sum of the previous two. Therefore, if we denote the ith Fibonacci number as Fi then we have... Question 2 5 marks] The Fibonacci sequence is a sequence of numbers that starts with 1, 1, and each successive element is the sum of the previous two. Therefore, if we denote the ith Fibonacci number as F then we have Fi = Fi-1 +Fi-2 for i = 3,4,5, Write a function called fib that accepts a single argument n which you may assume is a positive integer. Your functio sequence n it to return a row vector containing the first n elements of the Fibonacci

Explanation / Answer

function F = fibonacci(n) Fn = [1 0]; %Fn(1) is F_{n-2}, Fn(2) is F_{n-1} F = 0; %F is F_{n} for i = (1:abs(n)) Fn(2) = F; F = sum(Fn); Fn(1) = Fn(2); end if n < 0 F = F*((-1)^(n+1)); end end

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