Bug 15600

Summary: gnome-calculator will not compute ln(0.5)
Product: Mageia Reporter: Theodoros Kalamatianos <thkala>
Component: RPM PackagesAssignee: GNOME maintainers <gnome>
Status: RESOLVED OLD QA Contact:
Severity: normal    
Priority: Normal CC: Zeldafarah10, marja11, olav, rverschelde, shlomif
Version: 5   
Target Milestone: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Source RPM: gnome-calculator-3.14.1-1.mga5.src.rpm CVE:
Status comment:

Description Theodoros Kalamatianos 2015-03-31 18:59:07 CEST 
Description of problem:

On my x86_64 system (i7-3770), gnome-calculator is unable to compute the natural logarithm of 0.5 when in advanced mode. ln0.5 results in an error:

*** ERROR OCCURRED IN LNS, NEWTON ITERATION NOT CONVERGING PROPERLY ***

It could be some sort of bug w.r.t. the convergence checks in gnome-calculator's Newton-Raphson implementation - or it could be something more insidious. No other tool that I have tried, including an actual scientific calculator has any trouble computing what seems to me a perfectly fine logarithm.

Version-Release number of selected component (if applicable):

gnome-calculator-3.14.1-1.mga5

How reproducible:

Always

Steps to Reproduce:
1. Start gnome-calculator
2. Click on the top button and switch to advanced mode
3. Type `ln0.5' and press Enter, or use the mouse on the virtual keypad


Reproducible: 

Steps to Reproduce:
Comment 1 Theodoros Kalamatianos 2015-03-31 19:11:24 CEST 
An interesting point:

The gnome-calculator binary from the Mageia 4 gnome-calculator-3.10.2-1.mga4.x86_64 package works fine on the same system. Seems like we have a regression from version 3.10.
Comment 2 Rémi Verschelde 2015-03-31 19:16:34 CEST 
I confirm the bug :-O

CC: (none) => remi

Rémi Verschelde 2015-03-31 19:16:44 CEST

Summary: gnome-calculator will not computer ln(0.5) => gnome-calculator will not compute ln(0.5)

Rémi Verschelde 2015-03-31 19:24:07 CEST

CC: (none) => olav

Comment 3 Shlomi Fish 2015-06-05 18:46:17 CEST 
Still happens in latest Mageia 5 x86-64. Adding the right tags.

CC: (none) => shlomif
Whiteboard: (none) => MGA5TOO, FOR_ERRATA

Samuel Verschelde 2015-06-08 17:15:55 CEST

Whiteboard: MGA5TOO, FOR_ERRATA => MGA5TOO

Comment 4 Theodoros Kalamatianos 2016-05-22 21:14:41 CEST 
This issue seems to have been fixed in gnome-calculator-3.20.1-1.mga6.
Comment 5 Shlomi Fish 2016-05-23 10:32:04 CEST 
(In reply to Theodoros Kalamatianos from comment #4)
> This issue seems to have been fixed in gnome-calculator-3.20.1-1.mga6.

Yes, it seems to be ok. Marking as Mageia v5 only.

Whiteboard: MGA5TOO => (none)
Version: Cauldron => 5

Olav Vitters 2016-09-19 10:30:10 CEST

Assignee: bugsquad => gnome

Comment 6 Marja Van Waes 2018-04-29 09:26:07 CEST 
(In reply to Shlomi Fish from comment #5)
> (In reply to Theodoros Kalamatianos from comment #4)
> > This issue seems to have been fixed in gnome-calculator-3.20.1-1.mga6.
> 
> Yes, it seems to be ok. Marking as Mageia v5 only.

Hi Theodoros,

Thank you for having taken the needed time to report this issue!

We regret if this issue didn't get fixed in Mageia 5.

Mageia 5 has officially reached its End of Life on December 31st, 2017 https://blog.mageia.org/en/2017/11/07/mageia-5-eol-postponed/
It only continued to get important security updates since then, but non-security bugs have no chance of still getting fixed.

Closing as OLD.

Resolution: (none) => OLD
Status: NEW => RESOLVED
CC: (none) => marja11

Comment 7 zelda thehgd 2023-03-27 06:22:41 CEST Comment hidden (spam)

CC: (none) => Zeldafarah10