MaplePrimes - answers and comments on Question, Maple 15 (X86 64 LINUX) Fedora 16 log[2](x) bug???

Cannot reproduce that error

Thomas Richard — Tue, 31 Jan 2012 14:20:04 Z

... on supported platforms, including Ubuntu x86_64. You might check your Maple_15_InstallLog.log (and the same for the 15.01 update if you started with 15.00) for warnings and errors at installation time. But in case the problem is Fedora specific I recommend changing to another distribution. Fedora is bleeding edge, with all its pros and cons, and probably a bad idea for production systems.

Contact Maplesoft Technical Support for assistance

dskoog — Thu, 09 Feb 2012 20:38:45 Z

After investigating this, we have found an 'unofficial' workaround to resolve this for users running Maple 15 in Fedora 15 and above. The problem originates due to a conflict between the hflogb implementation in Fedora and a few of Maple's libraries. This issue will be fixed in Maple 16.

If any user does experience this problem, please contact Maplesoft Technical Support at support (at) maplesoft.com and they will assist you in resolving this issue.

only applies to integers

pnm — Fri, 09 Mar 2012 15:49:13 Z

Same problem here - 3.2.8-1-ARCH #1 SMP PREEMPT Mon Feb 27 21:51:46 CET 2012 x86_64 Intel(R) Core(TM)2 Duo CPU T9900 @ 3.06GHz GenuineIntel GNU/Linux.

It seems that the problem only occurs if maple treats the number as an integer.

Example:

log[2](8) => Error, (in iroot) powering may produce overflow

log[2](8.) => 3.0000 (note the decimal point)

Speculation: Log method in Arch/Fedora/Generic linux changed the way it works with floats/integers. So when maple parses a number as integer, it is not converting it accordingly (to float or whatever).

Dear Thomas! a) the the fresh install of

viraghj — Tue, 31 Jan 2012 17:02:42 Z

Dear Thomas!

a) the the fresh install of this 15.01 version was SUCCESSFUL:

$ grep Status /opt/MAPLE15/Maple_15_InstallLog.log|grep -v "Status: SUCCESSFUL"

b) i have been using Maple on Fedora for many years without any (platform-specific) problems.

This is my first 64 bit install, although.

How can i try some kind of debugging?

Regards

János

@viraghj I have a rather old system (Fedora

Thomas Richard — Tue, 31 Jan 2012 20:14:04 Z

@viraghj I have a rather old system (Fedora Core 3 on a Dual Opteron machine, made in 2004) at home, with Maple 10 - 15 on it, but I certainly cannot recommend that distribution for real work, as it has massive bugs. In any case, Maple has no problems with log[2](8) on that machine. So maybe Fedora 16 broke some libraries. Just a guess.

No error in Fedora 16

dskoog — Fri, 03 Feb 2012 21:30:35 Z

We tested this on a fresh Fedora 16 (32-bit) install and did not encounter the error.

We were however able to reproduce it in the 64-bit version. This seems to suggest an issue with the 64-bit binaries.