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Message #40547
[Bug 871988] Re: tanh function returns incorrect results
Thank you for taking the time to report this bug. As this bug has been
fixed, and the Oneiric version of gcalctool does return the correct
result, I am marking this as Fix Released.
** Changed in: gcalctool (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/871988
Title:
tanh function returns incorrect results
Status in “gcalctool” package in Ubuntu:
Fix Released
Status in “gcalctool” package in Debian:
Fix Released
Bug description:
gcalctool evaluates the tanh function incorrectly.
gcalctool:
Installed: 5.30.0.is.5.28.2-0ubuntu2
Candidate: 5.30.0.is.5.28.2-0ubuntu2
Distributor ID: Ubuntu
Description: Ubuntu 10.04.2 LTS
Release: 10.04
Codename: lucid
Steps to reproduce:
Run "gconftool --solve 'tanh 0.1'". It will print 0.549833997,
although the actual answer is 0.099667995. This is also repeatable
using the graphical calculator interface.
This has been fixed in Debian (see http://bugs.debian.org/cgi-
bin/bugreport.cgi?bug=604032) and Natty, but it's still a problem in
Lucid. Can you please add the patch to Lucid and SRU this? It's a
very simple patch, and it's pretty bad to have the default calculator
in gnome give incorrect answers.
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References