create a function that accepts a vector input v and a vector input i and returns the value of v indexed by i. in matlab

To create a function that accepts a vector input v and a vector input i and returns the value of v indexed by i in MATLAB, you can use the following code:

main.m
function result = getIndexValue(v, i)
    result = v(i);
end
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In this function, v is the input vector and i is the input index vector. The function uses the indexing operator () to retrieve the values of v at the indices specified in i. The result is then returned as the output of the function.

You can call this function by passing in your input vectors, for example:

main.m
v = [1, 2, 3, 4, 5];
i = [2, 4];
output = getIndexValue(v, i);
disp(output);
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This will output the values of v at indices 2 and 4, which in this case are 2 and 4 respectively.