How do I sum a list<> of arrays

Question

I have a List< int[] > myList, where I know that all the int[] arrays are the same length - for the sake of argument, let us say I have 500 arrays, each is 2048 elements long

Answer 1

Edit: Ouch...This became a bit harder while I wasn't looking. Changing requirements can be a real PITA.

Okay, so take each position in the array, and sum it:

var sums = Enumerable.Range(0, myList[0].Length)
           .Select(i => myList.Select(
                     nums => nums[i]
                  ).Sum()
           );

That's kind of ugly...but I think the statement version would be even worse.