John Popelish wrote:
This is the pattern the standing wave function describes. The current
at every point has one of two phases, which are 180 degrees from each
other.

Is this how you see it?

Yes, now which direction is that current flowing? If the
source were known to be to the left, would that change
your answer?
--
73, Cecil http://www.qsl.net/w5dxp