1. Not finding help here? Sign up for a free 30min 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!

Quick, simple question on sets

  1. Mar 21, 2008 #1
    [SOLVED] Quick, simple question on sets

    1. The problem statement, all variables and given/known data
    A - B is the difference
    A u B is the union
    A n B is the intersection
    A (+) B is what?

    I would google this, but I haven't a clue what the symbol or function is called. It's supposed to be a +, inside a circle.

    Can someone tell me what this symbol means, or at least tell me what it's called, so I can look it up myself?

    Edit: In TeX, it's this: [tex]\oplus[/tex]
    Last edited: Mar 21, 2008
  2. jcsd
  3. Mar 21, 2008 #2
    Found it.

    For anyone else with a similar problem, it's the "symmetric difference"

    A (+) B = AuB - AnB
    (The set of elements in either A or B, but not in both)
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Quick, simple question on sets
  1. Quick Set Question (Replies: 2)

  2. Simple sets question (Replies: 3)