Question

İn MatLab  (please don't use any find sum or zeros commands only use loops)

4) Write a function that takes a matrix and puts its columns into reverse order. Example: Input 6 2 1 8 6 5 | 4 1 6 4 3 8 0 5 2 5 Output 3 0 1 5 8 2 3 5 3 1 8 3 4 4 3 8 6 5 4 4

Answer 1

function A = reverseColumns (A) [row col] = size(A); 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 for j = 1:floor(col/2) % looping over first half of the columns X = A(:, }); % swapping columns with help of x A(:, ) = A(:, col-j+1); A(:, col-j+1) = x; end end [2 8 6 3; 1 6 4 5 1; 4 5 3 2 8; 7 4 8 5 3];|| A = reverseColumns (A) Execute Mode, Version, Inputs & Arguments Execute Result CPU Time: 0.13 sec(s), Memory: 39884 kilobyte(s) executed A = 3 1 8 3 6 4 3 8 8 6 5 4 2 1 4 7 2 5

function A = reverseColumns(A)
[row col] = size(A);
  
for j = 1:floor(col/2) % looping over first half of the columns
  
x = A(:, j); % swapping columns with help of x
A(:, j) = A(:, col-j+1);
A(:, col-j+1) = x;
  
end
  
end

A = [2 8 6 0 3; 1 6 4 5 1; 4 5 3 2 8; 7 4 8 5 3];
A = reverseColumns(A)

% Please up vote