Cecil Moore wrote:
Incidentally, the intensity of the sums
^^^^^^^^^^^^^^^^^^^^^
is the mistake you made when you calculated
the reflection from non-reflective glass to be brighter
than the surface of the sun.

Sorry, that should be the "sum of the intensities".
The intensity of the sums is the way to correctly
calculate total intensity. The sum of the intensities
yields an incorrect answer as Richard earlier discovered
with his "reflections brighter than the surface of the
sun" calculation.
--
73, Cecil http://www.w5dxp.com