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Me in this problem

  1. Dec 6, 2009 #1
    plz help me in this problem

    1. The problem statement, all variables and given/known data

    how make check the linearity and shift invarient for the system

    I want to determine whether the system is linear and shift invarientby steps

    g(m,n) = f(m,-1) + f(m,0) + f(m,1)

    g(x) = (integration from +infinety to - infinety) f(x,z) dz

    plz help me
    Thanks alot
    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Dec 13, 2009 #2
    Re: plz help me in this problem

    Add a variable for what you want to show is invariant.
    Show that it makes no difference in the equation.

    For instance, derivative of a function is invariant with respect to a constant added.
    So you make the constant an independent variable. Take a derivative. Notice that the derivative of the independent variable goes to zero...
     
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