In message , Jeff writes
I was digging around for the formula for a travelling wave
and encountered cos(kx-wt), where k is the wave number and
w the radians/sec, which thinking further means that k HAS to
be radians per metre and not cycles per metre.



Even a small amount of investigation will show that wave-number when
expressed in radians use the symbol k, and when expressed in
wavelength uses the symbol nu-bar 0 or a tilde above it).

Jeff



Nu (without the tiddly) is c/lambda as in E=h x nu photon energy

Damn physicists.

Brian


--
Brian Howie