All the odd powers are the same. All the nonzero even powers are the same.
s all cancel out.
We now must look at the sums for each term in the matrix and identify the function it
If we look at the sum for the upper left term of the matrix, we get a 1 times
. This is just
There is only one contribution to the middle term, that is a one from
The lower right term is like the upper left except the odd terms have a
term n. This is just
The rest of the terms are zero.
Jim Branson 2013-04-22