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[Octave-bug-tracker] [bug #49996] zp2sos error: cplxpair: could not pair
From: |
anonymous |
Subject: |
[Octave-bug-tracker] [bug #49996] zp2sos error: cplxpair: could not pair all complex numbers |
Date: |
Fri, 6 Jan 2017 14:39:51 +0000 (UTC) |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:50.0) Gecko/20100101 Firefox/50.0 |
URL:
<http://savannah.gnu.org/bugs/?49996>
Summary: zp2sos error: cplxpair: could not pair all complex
numbers
Project: GNU Octave
Submitted by: None
Submitted on: Fri 06 Jan 2017 02:39:50 PM UTC
Category: Octave Forge Package
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Crash
Status: None
Assigned to: None
Originator Name: Hale812
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 4.2.0
Operating System: Microsoft Windows
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Details:
The bug is serious preventing operation of scripts for automated filter
synthesis. Sometimes, optimization code can pass speciffic values, close to
Nyquist frequency, to the cheby2 function. The result is "cplxpair: could not
pair all complex numbers" message and following break of the program.
Either "frequency close to Nyquist" bug should be corrrected completely, or
100% safe frequecy constraints should be specified in manuals.
fpL=0.52915085925565918945068233369966;
fpH=491.55617297547132693580351769924;
[z,p,k]=cheby2(6,40,[fpL.*2 ./1000,fpH.*2 ./1000]);
[sos, g] = zp2sos (z, p, k)
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?49996>
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- [Octave-bug-tracker] [bug #49996] zp2sos error: cplxpair: could not pair all complex numbers,
anonymous <=
- [Octave-bug-tracker] [bug #49996] signal package: cheby2 produces zeros that are not quite complex conjugate pairs, Mike Miller, 2017/01/06
- [Octave-bug-tracker] [bug #49996] signal package: cheby2 produces zeros that are not quite complex conjugate pairs, Nicholas Jankowski, 2017/01/06
- [Octave-bug-tracker] [bug #49996] signal package: cheby2 produces zeros that are not quite complex conjugate pairs, Bill Lash, 2017/01/06
- [Octave-bug-tracker] [bug #49996] signal package: cheby2 produces zeros that are not quite complex conjugate pairs, Nicholas Jankowski, 2017/01/06
- [Octave-bug-tracker] [bug #49996] signal package: cheby2 produces zeros that are not quite complex conjugate pairs, Nicholas Jankowski, 2017/01/06
- [Octave-bug-tracker] [bug #49996] signal package: cheby2 produces zeros that are not quite complex conjugate pairs, Bill Lash, 2017/01/06
- [Octave-bug-tracker] [bug #49996] signal package: cheby2 produces zeros that are not quite complex conjugate pairs, Bill Lash, 2017/01/06
- [Octave-bug-tracker] [bug #49996] signal package: cheby2 produces zeros that are not quite complex conjugate pairs, Bill Lash, 2017/01/07
- [Octave-bug-tracker] [bug #49996] signal package: cheby2 produces zeros that are not quite complex conjugate pairs, Nicholas Jankowski, 2017/01/10
- [Octave-bug-tracker] [bug #49996] signal package: cheby2 produces zeros that are not quite complex conjugate pairs, Mike Miller, 2017/01/10