- #1
lepori
- 12
- 0
hi,
how can I calculate average of cos2x ?
I want to take average over a sphere
I tried to do like this: <cos2X>= 1/2π ∫cos2xdx
and I get 1/2
but in my books, wrote that average of cos2x , taken over a sphere, is 1/3
how can I calculate average of cos2x ?
I want to take average over a sphere
I tried to do like this: <cos2X>= 1/2π ∫cos2xdx
and I get 1/2
but in my books, wrote that average of cos2x , taken over a sphere, is 1/3