have been practicing questions i see online i just cant get how to solve this mathwork

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Write a function called flip_it that has one input argument, a row vector v , and one output argument, a row vector w that is of the same length as v. The vector w contains all the elements of v, but in the exact opposite order. For example, if v is equal to [1 2 3] then w must be equal to [3 2 1]. You are not allowed to use the built-in function flip, fliplr, or flipud.
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Answers (1)

Chandrika
Chandrika on 17 Jun 2022
As per my understanding, you need to code for a function that reverses a vector. You can do this using a recursive function. Please try the following code:
function w=flip_it(v)
w=[];
if isequal(length(v),1)
w=v(1);
elseif length(v) > 1
st=v(1:ceil(length(v)/2));
ed=v(ceil(length(v)/2)+1:end);
w=[flip_it(ed) flip_it(st)];
else
return
end
end
Here, recursion stops when length of the vector is 1, else flip_it function keeps getting called as part of the recursion.

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