Whatever happened to Feynman's notation (27.3 of vol 2) for vector differential identities?(adsbygoogle = window.adsbygoogle || []).push({});

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?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Feynman's subscript notation

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**