[Octave-bug-tracker] [bug #43895] freqz may work as designed but

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?43895>

                 Summary: freqz may work as designed but
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Sat 27 Dec 2014 01:40:21 AM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: Bill McEachen
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.6.4
        Operating System: Microsoft Windows

    _______________________________________________________

Details:

when I use freqz(num,den,10)

I expected the endpoints to be included.  I would think one would be
interested in finite value (pi).  However, it only yields data thru 0.9*pi.  I
would suggest adding/ensuring it also provides frequency response at pi (1
more step).  
So, freqz(num,den,2)  would produce (3) data values, not 2.
I often iterate things so as to match A/D response at the Nyquist frequency
...




    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?43895>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/