title: Is there any way to represent discrete signal having infinite non-zero terms (Python)
body: <p>for example input signal x[n] ={ 2^n , n&gt;=0 }
  { 0  , else  }</p>
  <p>and actually i would like to take convolution this input signal ...</p>
  <p>but there's a problem that it has infinite range</p>
  <p>so , if there are some ways to represent that input signal</p>
  <p>Could you answer me?</p>