How to display value of diff 0

I have code ready but I am not able to make a table because the array lengths are different as there is diff of zero in the first value Matlab is just skipping to next and instead of me getting an answer with 32 elements i am getting the anwer with 31 elements.

[Torsten]

Then skip one element of the second vector or add one element to the first vector.

Answer 1

[Image Analyst]

If v is your vector and d is the difference vector and you want them to be the same size, a common solution is

d = [0, diff(v)]; % If v is a row vector.
d = [0; diff(v)]; % If v is a column vector.