I think λ should be explained with a link to wavelength. Also I is not explained. The article should start with a definition, not with period and frequency.
The angular frequency formula is correct. --AxelBoldt
--- Reorganized concentrating on simpler topics first. Come on... don't formula look better in another font:
Hmm. Sorry, didn't check this page before, I just changed it back. With my browser/settings, formulae look much better like this:
- v = ω / k = λf ,
than like this:
v = ω / k = λf .
But that's just for me. Feel free to change it back. -- DrBob