1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    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!

Time invariant signal

  1. Feb 23, 2013 #1

    Can anyone help my to see why my solution is wrong because the in the solutions it says that it is not time invariant
  2. jcsd
  3. Feb 23, 2013 #2


    User Avatar
    2017 Award

    Staff: Mentor

    I don't understand what y_A and y_B are.

    Simple example:
    In general, those sums can be different.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook