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[Octave-bug-tracker] [bug #57175] Incorrect output using rref() function
From: |
anonymous |
Subject: |
[Octave-bug-tracker] [bug #57175] Incorrect output using rref() function on integer matrix |
Date: |
Tue, 5 Nov 2019 23:33:12 -0500 (EST) |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:70.0) Gecko/20100101 Firefox/70.0 |
URL:
<https://savannah.gnu.org/bugs/?57175>
Summary: Incorrect output using rref() function on integer
matrix
Project: GNU Octave
Submitted by: None
Submitted on: Wed 06 Nov 2019 04:33:10 AM UTC
Category: None
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Incorrect Result
Status: None
Assigned to: None
Originator Name: Josh
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 4.2.2
Operating System: GNU/Linux
_______________________________________________________
Details:
I attempted running the following lines:
A = [0,0,1,1,6;1,5,0,0,-28;0,0,-1,-25,-102;-1,-125,0,0,622]
rref(A)
The correct answer ought to be:
1.00000 0.00000 0.00000 0.00000 -3.00000
0.00000 1.00000 -0.00000 -0.00000 -5.00000
0.00000 0.00000 1.00000 0.00000 2.00000
0.00000 0.00000 0.00000 1.00000 4.00000
But is returned as:
1.00000 0.00000 0.00000 0.00000 -3.25000
0.00000 1.00000 -0.00000 -0.00000 -4.95000
0.00000 0.00000 1.00000 0.00000 2.00000
0.00000 0.00000 0.00000 1.00000 4.00000
_______________________________________________________
Reply to this item at:
<https://savannah.gnu.org/bugs/?57175>
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- [Octave-bug-tracker] [bug #57175] Incorrect output using rref() function on integer matrix,
anonymous <=