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Feynman's subscript notation

  1. Sep 2, 2013 #1
    Whatever happened to Feynman's notation (27.3 of vol 2) for vector differential identities?

    Ever since I learned his notation of subscripting nabla with the vector field it acts on to treat nabla as a plain vector, I have been using it to derive all vector identities I need. I only need to resort to indices when homework requires it, but otherwise I use it exclusively.

    I see so little mention of this notation that I get the impression that most people do not find it useful. What is your impression?
     
  2. jcsd
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