code in MATLAB

Write a function that, given a single vector as the input calling argument, calculates and the differences between neighboring elements.

You must use branching and looping with the appropriate indexing to accomplish this task. The result is returned by the function, not printed by the function.

For example, given input vector [ 1 2 3 ], the result would be [ 1 1 ]

For example, given input vector [ 3 2 0 2 ], the result would be [ 1 2 -2 ]

For example, given input vector [ 2 6 3 -1 ], the result would be [ -4 3 4 ]

For example, given input vector [ 1 1 1 1 ], the result would be [ 0 0 0 ]