1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Dirac delta function evaluation

  1. Nov 9, 2009 #1
    I do not know how to execute the problem with the 2x in the problem.

    Evaluate the integral:

    [tex]

    \int_{-4}^{4} (x^2+2x+1) \delta(2x) dx

    [/tex]
     
  2. jcsd
  3. Nov 9, 2009 #2
    Simplest way would be to change variables. Write 2x = y, and you know what integral over [tex] \delta(y) [/tex] gives right?
     
  4. Nov 9, 2009 #3
    Yup i got it. Thanks.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook




Loading...