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!

Causal and time variant

  1. Oct 25, 2004 #1
    1.g(t) = f(t) + f(-t)
    2. g(t)= f(t/2)
    can someone pls explain why these functions are time variant and non causal
  2. jcsd
  3. Oct 26, 2004 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    This sounds like it's from a DSP course. Is it ? Are you talking about filters ?
  4. Oct 26, 2004 #3
    yeah I am !! they are filters.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Causal and time variant
  1. Time and DIstance (Replies: 1)

  2. Calculating Time? (Replies: 0)

  3. Time in Minutes (Replies: 3)

  4. Time equals ? (Replies: 6)