MATLAB Answers

How do I display the first 20 numbers of the Fibonacci sequence?

2 views (last 30 days)
Seth Broberg
Seth Broberg on 27 Sep 2020
Commented: Sindar on 28 Sep 2020
Need a for loop that displays the first 20 numbers of the Fibonacci sequence.
Here is my code so far
a=1
i=3
for a=1:20
f(i)=f(i-1)+f(i-2);
a+1
i+1
end
disp(f)
it currently displays as the output.
function_handle with value:
@(x,y)x.^2+y.^2

  0 Comments

Sign in to comment.

Answers (1)

Sindar
Sindar on 28 Sep 2020
you need to define the first two numbers manually, then start on the third
f(1) = 0;
f(2) = 1;
for a=3:20
...
Also, it's unclear what you are doing with 'i'

  2 Comments

Seth Broberg
Seth Broberg on 28 Sep 2020
so I have this code written
a=1
f(1)=0
f(2)=1
for a=3:20
f(i)=f(i-1)+f(i-2);
a+1
end
disp(f)
and am now getting this error
Array indices must be positive integers or logical values.
Error in Week2 (line 56)
f(i)=f(i-1)+f(i-2);
Sindar
Sindar on 28 Sep 2020
  • what value is i taking here?
  • do you understand what for a=3:20 does?
(also, you might want to check out the Matlab Onramp)

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!