Question

8. Write a function which reverses a vector, i.e. if the input is (4, 2, 1,5,-3], the output would be [-3,5, 1, 2,4]. 9. Write a function which computes the sum of every second element in a vector.
i need this done in Matlab

Answer 1

1.

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COMMAND WINDOW inp_vector 1 2 345 >> reverse (inp_vector) ans 5 4 3 21

function [ out-vector " reverse( inp-vector ) %function named reverse which takes in a vector as an argument and rreturns the reversed vector·l out-vector flip1r(inp-vector); % here we are using the builtin function of matlab to reverse the vector provided by the user. end

function [ out_vector ] = reverse( inp_vector ) %function named reverse which takes in a vector as an argument and rreturns the reversed vector.

out_vector = fliplr(inp_vector); % here we are using the builtin function of matlab to reverse the vector provided by the user.

end

2.

function [ s ] = vec. Sum( vec ) s = sum(vec(2:2:length(vec))); end %this line of code will sum the every second element of the vector·l

>vec [1, 2, 3, 4, 5] vec - 1 2 345 >> vec sum( vec) ans fi

function [ s ] = vec_sum( vec )

s = sum(vec(2:2:length(vec))); %this line of code will sum the every second element of the vector.

end

Thank You.

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