Dylan Rathbone created JRUBY-6565:
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Summary: Math.log10(1000) does not return '3.0'
Key: JRUBY-6565
URL: https://jira.codehaus.org/browse/JRUBY-6565
Project: JRuby
Issue Type: Bug
Components: Application Error
Affects Versions: JRuby 1.6.7
Environment: Linux WW637V18660A 2.6.32-37-generic-pae #81-Ubuntu
Reporter: Dylan Rathbone
Fix For: JRuby 1.6.7
JRuby 1.6.7 is not returning the correct result when 'Math.log10(1000)' is
executed. See code snippet below:
{code}
$ irb
jruby-1.6.7 :001 > Math.log10(1000)
=> 2.9999999999999996
{code}
What should be returned is in fact 3.0.
The same calculation performed using other variants of JRuby below...
JRuby 1.6.4:
{code}
jruby-1.6.4 :002 > Math.log10(1000)
=> 3.0
{code}
JRuby 1.6.5:
{code}
jruby-1.6.5 :001 > Math.log10(1000)
=> 3.0
{code}
System details below...
{code}
$ rvm info
jruby-1.6.7@j2oomee:
system:
uname: "Linux WW637V18660A 2.6.32-37-generic-pae #81-Ubuntu SMP Fri
Dec 2 22:24:22 UTC 2011 i686 GNU/Linux"
bash: "/bin/bash => GNU bash, version 4.1.5(1)-release
(i486-pc-linux-gnu)"
zsh: " => not installed"
rvm:
version: "rvm 1.9.2 by Wayne E. Seguin (wayneeseg...@gmail.com)
[https://rvm.beginrescueend.com/]";
ruby:
interpreter: "jruby"
version: "1.6.7"
date: "2012-02-22"
platform: "linux-i386-java"
patchlevel: "TM"
full_version: "jruby 1.6.7 (ruby-1.9.2-p312) (2012-02-22 3e82bc8) (Java
HotSpot(TM) Server VM 1.6.0_22) [linux-i386-java]"
homes:
gem: "/home/drathbon/.rvm/gems/jruby-1.6.7@j2oomee"
ruby: "/home/drathbon/.rvm/rubies/jruby-1.6.7"
binaries:
ruby: "/home/drathbon/.rvm/rubies/jruby-1.6.7/bin/ruby"
irb: "/home/drathbon/.rvm/rubies/jruby-1.6.7/bin/irb"
gem: "/home/drathbon/.rvm/rubies/jruby-1.6.7/bin/gem"
rake: "/home/drathbon/.rvm/gems/jruby-1.6.7@j2oomee/bin/rake"
{code}
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