1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Scalars, vectors, pseudo-scalars, pseudo-vectors

  1. Mar 24, 2009 #1
    This is a basic question about the scalars, vectors, pseudo-scalars, and pseudo-vectors. I know that scalars and pseudo-vectors don't change sign under parity and vectors and pseudo-scalars do, but does that imply that scalars have to be even function of x, y, z (like for example x^2+y^4+z^2) and pseudo scalars have to be odd in x, y, z and also correspondingly with vectors and pseudo vectors? Also if you have a function like x^3 +y^2+z^54, does that mean that this function can be broken up into a scalar and pseudo scalar part, just like how any function can be broken up into an even and an odd part? I think I am really confused about this. Thanks in advance to anyone who can really clarify this. (Also I didn't know where to post this question. So if its placed in the wrong section, then feel free to redirect it into the correct section.)
  2. jcsd
  3. Mar 25, 2009 #2


    User Avatar
    Science Advisor
    Homework Helper

    Hi captain! :smile:

    Just as you can't add scalars to vectors,

    you can't add vectors to pseudovectors, or scalars to pseudoscalars.

    In physics, it'll be a scalar or a vector or a pseudo-scalar or a pseudo-vector …

    it won't be a mixture. :smile:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook