sum of elements of an array

I'm sorry for the stupid question, but If i have an array A = [1,2,5,7,9] and i want an array B = [1,3,8,15,24], progressive sum of the elemts in A, what is the code that returns me B? Thanks!

Answer 1

[John D'Errico]

B = cumsum(A);

You could have learned about this function by reading the help for sum. At the bottom of the help, you would see a see also line. That reads:

See also prod, cumsum, diff, accumarray, isfloat.

[RAFFAELE CANTERI]

Easy! Thanks