Diagrammatic Notation

  1. Hi guys

    I was first introduced to diagrammatic notation in Roger Penrose's book "Road to Reality".
    I wanted to know if any of you are familiar with diagrammatic notation for tensors? As such, is it worthwhile learning? Its certainly alot clearer (for me anyway :P) than index notation for some of the more complicated structures.

    I quite like the way contraction looks and a few of the graphical 'proofs' seem very natural (like the determinant of a product being the product of the determinants).

    As an aside: If you were to add two tensors of the same valence, what would the new structure look like?

    Thanks
    Jacques
     
  2. jcsd
  3. It's junk, in my opinion.
     
Know someone interested in this topic? Share this thead via email, Google+, Twitter, or Facebook

Have something to add?