MATLAB: Subtracting 2 cells in an array

arrayMATLAB

Given:

A=[1,3,5,2,6,1];

Is there a function where I can get a difference of first and following cell in above matrix?

For example, output should be = 1-3, 3-5, 5-2,2-6,6-1 = -2,-2,3,-4,5

Finally, is there a way to sum the entire value in the matrix?

Thanks

Best Answer

>> -diff(A)
ans =
    -2    -2     3    -4     5
>> sum(-diff(A))
ans =
     0