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Create the following functions using MATLAB write a function called even_index that takes a matrix, M, as input argument and returns a matrix that contains

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Create the following functions using MATLAB

write a function called even_index that takes a matrix, M, as input argument and returns a matrix that contains only those elements of M that are in even rows and columns. In other words, it would return the elements of Mat indices (2,2), (2,4), (2,6), -, (4,2), (4,4), (4,6), -, etc. Note that both the row and the column of an element must be even to be included in the output. The following would not be returned: (1,1), (2,1), (1,2) because either the row or the column or both are odd. As an example, if Mwere a 5-by-8 matrix, then the output must be 2-by-4 because the function omits rows 1, 3 and 5 of M and it also omits columns 1, 3, 5, and 7 of M. 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, is v is equal to [1 2 3] then w must be equal to 13 2 1]. You are not allowed to use the built-in function flip, fliplr, or flipud

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