I Good resources for learning a little about the wave vector

AI Thread Summary
The discussion centers on finding resources for understanding the wave vector in physics. Recommendations include Griffiths' Electromagnetism, specifically Chapter 9, and David Morin's free draft textbook on waves, particularly section 8.3.1, which relates wave vectors to surfaces of constant phase. An analogy is drawn between wave vectors and gradients, similar to equipotential surfaces in electrostatics. Additional resources provided include a PDF on wave properties and a link to a Stack Exchange answer discussing related concepts. These materials collectively offer a solid foundation for studying wave vectors.
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Hi, I am looking for a short document discussing the usage of the wave vector. Any recommendations? Thank you!

Alternatively, you could give a brief introduction here; I’m mainly confused about how k can be a vector.
Hi, I am looking for a short document discussing the usage of the wave vector. Any recommendations? Thank you!
 
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Do you have access to Griffiths E&M? Chapter 9 ought to do the trick.

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