Gene Fuller wrote:
Oops, I am afraid I must retract my previous congratulatory progress
report. You are obviously still confusing phasors with field vectors.
Until you get that terrible misconception sorted out, there is no hope
for further progress.

Let's skip your objection for the moment and let you
answer this simple technical question.

Poynting vector = ExH = E*H*sin(A)

The Poynting vector for a pure standing wave = 0.

It is always zero even when both E and H are not zero.

So here is the question for you. Assuming that neither
E nor H is equal to zero:

When E*H*sin(A) = 0 (Poynting vector)

What are the possible magnitudes of angle 'A'?

This is a simple technical question having absolutely
nothing to do with confusing phasors with field vectors.

Please provide an answer.

I assume that Hecht covers the equations and such.

Yes he does. He also recognizes when the EH fields
incident upon a plane can be validly represented by
phasors. Apparently, Hecht also "confuses phasors
with field vectors". (SIC)
--
73, Cecil http://www.w5dxp.com