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Write a function called corners that takes a matrix as an input argument and returns four outputs: the elements at its four corners in this order: top_left, top_right, bottom_left and bottom_right. (Note that loops and if-statements are neither neces
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Can't find a solution to this problem im a noob, please help, example
>> [a, b, c, d] = corners([1 2; 3 4])
a =
1
b =
2
c =
3
d =
4
12 Comments
Answers (4)
Muhammad Barkhaya
on 24 Nov 2019
function [a,b,c,d]=corners(x)
a=x(1,1)
b=x(1,end)
c=x(end,1)
d=x(end,end)
end
3 Comments
Yihan Liu
on 22 Sep 2019
Well, this one could work.
function [a,b,c,d]=corners(A)
[m,n] = size(A);
a=A(1,1); % Top left
b=A(1,n); % Top right
c=A(m,1); % Bottom left
d=A(m,n); % Bottom right
end
1 Comment
Guillaume
on 22 Sep 2019
Despite Sejal Syed's comment, the function that Debaditya ended up with does work and is slightly simpler (since it uses the end keyword) instead of querying the size.
ABHIJIT BISWAS
on 22 Nov 2020
Edited: Image Analyst
on 16 Sep 2021
function [a, b, c, d] = corners(x)
a = x(1,1); %top left
b = x(1,end); %top right
c = x(end,1); %bottom left
d = x(end,end); %bottom right
The bottom left and bottom right are the most important part.
Check the 3rd and 4th line of code properly.
Hope this helps!
5 Comments
Karan
on 24 Oct 2023
function [top_left,top_right,bottom_left,bottom_right] = corners(rows, columns)
e = rand(rows,columns);
top_left = e(1,1);
top_right = e(1,end);
bottom_left = e(end,1);
bottom_right = e(end,end);
end
DGM
on 24 Oct 2023
Edited: DGM
on 24 Oct 2023
That's not an answer to the question that was asked, and it's hard to imagine the question for which it would be a practical solution.
You're supposed to take a given 2D array and return its corner elements. Instead, your function takes two size arguments and returns the corner elements of a random array of that size. In effect, the input arguments to your function are meaningless. The outputs are four random numbers. The fact that they are corner elements is completely inconsequential but in the trivial case of vectors. They're just a set of random numbers.
I think it's fair to say that this question has been exhausted. It's bad enough that people paste the same code over and over as if it's a helpful revelation. It should stand to reason that there's little use for answers that don't acknowledge the task at hand.
Sisay Girma
on 23 Feb 2024
function [top_left, top_right, bottom_left, bottom_right] = corners(A)
top_left=A(1,1);
top_right=A(1,end);
bottom_left=A(end,1);
bottom_right=A(end,end);
end
% Code to call your function
A = randi(100,2,2)
[top_left, top_right, bottom_left, bottom_right] = corners(A)
2 Comments
Rik
on 23 Feb 2024
What exactly does this answer add to the other answers in this thread? What does it teach? You're more than welcome to start answering questions, but why post a solution to a homework question where equivalent answers already exist?
You might be interested in giving Cody a try if you want to post your own solution for solved questions.
DGM
on 23 Feb 2024
Other than a change of variable name, how is this any different? If it's not demonstrating something different, then why does it exist?
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