How to do functional derivatives

  • Context: Graduate 
  • Thread starter Thread starter leroyjenkens
  • Start date Start date
  • Tags Tags
    Derivatives Functional
Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
1 reply · 1K views
leroyjenkens
Messages
621
Reaction score
49
Here's an example from my homework. I already turned it in, though. I basically just copied what I could from my notes, but I have no idea how this is done.
Could someone explain this to me? I can't find anything intelligible (at least to me) of this stuff on any website. My notes contain parts where the instructor changed certain terms into delta functions, but I'm not sure why, and I don't know when to do that.
So if anyone has the time, could you explain this step by step to me of what this question is looking for? I'll post the picture from my homework.
Thanks.
 

Attachments

  • Untitled.jpg
    Untitled.jpg
    11.6 KB · Views: 459
Physics news on Phys.org