MATLAB: Vector Difference

vector math

Given a vector x=[2 5 6 10 16 29].

Is there a one line command to create another vector that is the difference between the last elements (first element of x is first element of y)?

Example Output: y=[2 3 1 4 6 13]

y = [x(1) diff(x)]

numel( intersect( X, Y ) )

If I remember correctly, diff works across the first non-singleton dimension. So diff(A) works across columns and diff(A(1, :)) works across rows.

x = [1,2,3; 4,5,6];
diff(x, [], 1)
ans =
   3     3     3
diff(x, [], 2)
ans =
   1     1
   1     1