Question

Matlab. Please add comments. Thank you in advance.

15. Write a code that can read in a string and replaces all vowels with x's 16. Write a function that reads in a D array of any length, u, and swaps elements of the array in the following way. The first and last element are swapped. The second and second to last element are swapped. The third and third to last element are swapped, and so on until all the elements get swapped. Output the swapped array.

Answer 1

MATLAB Code:

(15)

function retval = changeVowels (input1)
% Function that replaces all vowels with x's
  
retval = lower(input1);
  
% Iterating over input string
for i=1:length(input1)
% Checking for vowels
if (retval(i) == 'a' || retval(i) == 'e' || retval(i) == 'i' || retval(i) == 'o' || retval(i) == 'u')
retval(i) = 'x';
end % If ebd
end % For end
  
end % function end

Sample Run:

null

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(16)

function retval = swapArray (input1)
% Function that swaps the array elements
  
% Copying array
retval = input1;
  
% Last index
j = length(input1);
  
% Iterating over half of the array
for i=1:length(retval)/2
  
% Swapping elements
temp = retval(i);
retval(i) = retval(j);
retval(j) = temp;
  
j = j-1;
  
end % For end
  
end % function end

Sample Run: