[Octave-bug-tracker] [bug #60423] [octave forge] (signal) buttord incorrect result

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?60423>

                 Summary: [octave forge] (signal) buttord incorrect result
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Tue 20 Apr 2021 08:31:01 AM UTC
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: 4.2.2
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

From
https://ewh.ieee.org/r1/ct/sps/PDF/MATLAB/chapter5.pdf

Test case with signal v1.4.1


Wp = 10; Ws = 20; Rp = -2; Rs = -20;
[N,Wc] = buttord(Wp,Ws, -Rp, -Rs, 's')
N =  4
Wc =  10.693


The expected result is

N = 4
Wc = 11.2610






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