MATLAB Answers

Display an Error Message

2 views (last 30 days)
Sona H
Sona H on 21 Jul 2021
Commented: Star Strider on 21 Jul 2021
Hi , ive tried to write a function which would Display an error but for some reason i dont know why, but it dosent work ,and i dont know where i wnet wrong .I want n to denote the positive integer that is greateer than or equal to 3 or otherwise the function will display ''error.your input is invalid
n=input ('sequence_matrix_');
if n > 3
disp ('Error. Your input is invalid.');
else
fib=[1,3:n];
for i=3:n
fibb(i)=fibb(i-1)*3+fibb(i-2);
end
end
diag(fibb)

Accepted Answer

Star Strider
Star Strider on 21 Jul 2021
The code works. The if logic is the opposite of what you indicated that you want.
Correcting that (and a couple other small problems) —
n = 2
n = 2
if n < 3
disp ('Error. Your input is invalid.');
else
fibb=[1,3:n];
for i=3:n
fibb(i)=fibb(i-1)*3+fibb(i-2);
end
end
Error. Your input is invalid.
if exist('fibb')
diag(fibb)
end
n = 4
n = 4
if n < 3
disp ('Error. Your input is invalid.');
else
fibb=[1,3:n];
for i=3:n
fibb(i)=fibb(i-1)*3+fibb(i-2);
end
end
if exist('fibb')
diag(fibb)
end
ans = 4×4
1 0 0 0 0 3 0 0 0 0 10 0 0 0 0 33
.
  2 Comments
Star Strider
Star Strider on 21 Jul 2021
As always, my pleasure!
.

Sign in to comment.

More Answers (0)

Community Treasure Hunt

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

Start Hunting!