Linq - How can a add the contents of two list

Question

I have two IEnumberable<double> list.

How can i add the each value of one list to the value in the same position in the other list using Linq?

Answer 1

You can use Enumerable.Zip to do this:

var results = first.Zip(second, (f,s) => f+s);

Note that, if the lists aren't the same length, your results will be the length of the shorter of the two lists (Zip as written above will add together elements until one sequence ends, then stop...)