Generating Fibonacci Sequence Using While Loop

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Hello all,
I am trying to generate the first Fibonacci Sequence Term greater than 1000 using a while loop. I am using the following code:
fibf(1) = 1;
fibf(2) = 1;
n=3:50;
while fibf(n) < 1000
fibf(n) = fibf(n-1)+fibf(n-2);
end
I am getting the error, 'Index exceeds matrix dimensions'. Any help is appreciated

Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 5 Oct 2014
fibf(1) = 1;
fibf(2) = 1;
n=3
while fibf(n-1) < 1000
fibf(n) = fibf(n-1)+fibf(n-2);
n=n+1;
end
  3 Comments
Arvindhan Sayapathy
Arvindhan Sayapathy on 9 Sep 2017
To get values exactly less than 1000, you can change the while condition to:
while(fibf(n - 1) + fibf(n - 2) < 1000)
Austin Marking
Austin Marking on 17 Mar 2021
Does the counter variable “n” HAVE to go second in the while loop?

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More Answers (1)

NEHA THAKUR
NEHA THAKUR on 2 Apr 2020
fibf(1) = 1;
fibf(2) = 1;
n=3
while fibf(n-1) < 1000
fibf(n) = fibf(n-1)+fibf(n-2);
n=n+1;
end

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