Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

(in iroot) powering may produce overflow

1,143 views
Skip to first unread message

Richard Mathar

unread,
Jan 31, 2012, 10:06:08 AM1/31/12
to
Has anyone seen this before and is there a way to avoid this error:
|\^/| Maple 14 (X86 64 LINUX)
._|\| |/|_. Copyright (c) Maplesoft, a division of Waterloo Maple Inc. 2010
\ MAPLE / All rights reserved. Maple is a trademark of
<____ ____> Waterloo Maple Inc.
| Type ? for help.
> Ri^2-(Ri^2-Rj^2-c^2)^2/(2*c)^2 ;
2 2 2 2
2 (Ri - Rj - c )
Ri - -----------------
2
4 c

> factor(%) ;
Error, (in iroot) powering may produce overflow

This seems to be new when combining Maple 14 with a Fedora 16 system.

Joe Riel

unread,
Jan 31, 2012, 11:52:09 AM1/31/12
to
It works for me on a Debian system with Maple14 and 15:

|\^/| Maple 14 (X86 64 LINUX)
._|\| |/|_. Copyright (c) Maplesoft, a division of Waterloo Maple Inc. 2010
\ MAPLE / All rights reserved. Maple is a trademark of
<____ ____> Waterloo Maple Inc.
| Type ? for help.
(**) Ri^2-(Ri^2-Rj^2-c^2)^2/(2*c)^2 ;
2 2 2 2
2 (Ri - Rj - c )
Ri - -----------------
2
4 c

(**) factor(%) ;
2 2 2 2 2 2
(-Rj + Ri - c - 2 Ri c) (-Rj + Ri + 2 Ri c - c )
- -----------------------------------------------------
2
4 c


--
Joe Riel

Axel Vogt

unread,
Jan 31, 2012, 1:20:14 PM1/31/12
to
On 31.01.2012 16:06, Richard Mathar wrote:
> Has anyone seen this before and is there a way to avoid this error:
> |\^/| Maple 14 (X86 64 LINUX)
> ._|\| |/|_. Copyright (c) Maplesoft, a division of Waterloo Maple Inc. 2010
> \ MAPLE / All rights reserved. Maple is a trademark of
> <____ ____> Waterloo Maple Inc.
> | Type ? for help.
>> Ri^2-(Ri^2-Rj^2-c^2)^2/(2*c)^2 ;
..
>> factor(%) ;
> Error, (in iroot) powering may produce overflow
>
> This seems to be new when combining Maple 14 with a Fedora 16 system.

Works for with M12 and M15, classical interface on Win XP

Thomas Richard

unread,
Feb 1, 2012, 4:08:30 AM2/1/12
to
On 31 Jan., 16:06, mat...@dommel.strw.leidenuniv.nl (Richard Mathar)
wrote:
> Has anyone seen this before and is there a way to avoid this error:

Yes: http://www.mapleprimes.com/questions/130220-Maple-15-X86-64-LINUX-Fedora-16-Log2

Fedora 16 apparently broke something (in the shared libraries maybe).
We recommend using one of the supported dristributions. For Maple 15:
http://www.maplesoft.com/products/system_requirements.aspx

For Maple 14 system requirements, please see your Install.html.

--
Thomas Richard
Maplesoft Europe GmbH

Richard Mathar

unread,
Feb 2, 2012, 6:31:50 AM2/2/12
to
I wrote:
>Has anyone seen this before and is there a way to avoid this error:
>> Ri^2-(Ri^2-Rj^2-c^2)^2/(2*c)^2 ;
> 2 2 2 2
> 2 (Ri - Rj - c )
> Ri - -----------------
> 2
> 4 c
>
>> factor(%) ;
>Error, (in iroot) powering may produce overflow

The problem has gone away: our department has not renewed the Maple
licence citing the unfavorable cost-over-user ratio, so the error does
not bother me anymore.
RJM

des.jo...@gmail.com

unread,
May 18, 2012, 6:11:18 AM5/18/12
to mat...@strw.leidenuniv.de
Hmm, hasn't gone away for me :) It's still a problem in Maple15 on Ubuntu 12.04 64bit.

Joe Riel

unread,
May 18, 2012, 10:48:43 AM5/18/12
to
It works for me with Maple 14,15,16 on Debian 64 bit.

--
Joe Riel

Nasser M. Abbasi

unread,
May 18, 2012, 6:44:52 PM5/18/12
to
and it works for me on Maple 14 on windows 7, 64 bit OS


|\^/| Maple 14 (IBM INTEL NT)
._|\| |/|_. Copyright (c) Maplesoft, a division of Waterloo Maple Inc. 2010
\ MAPLE / All rights reserved. Maple is a trademark of
<____ ____> Waterloo Maple Inc.
| Type ? for help.
> Ri^2-(Ri^2-Rj^2-c^2)^2/(2*c)^2 ;
2 2 2 2
2 (Ri - Rj - c )
Ri - -----------------
2
4 c

> factor(%);
2 2 2 2 2 2
(-Rj + Ri - c - 2 Ri c) (-Rj + Ri + 2 Ri c - c )
- -----------------------------------------------------
2
4 c

>


--nasser

G. A. Edgar

unread,
May 19, 2012, 7:49:12 AM5/19/12
to
In article <jp6jd8$pcp$1...@speranza.aioe.org>, Nasser M. Abbasi
Also no problem on Mac. So ... is this an Ubuntu problem?

--
G. A. Edgar http://www.math.ohio-state.edu/~edgar/

acer

unread,
May 19, 2012, 4:34:55 PM5/19/12
to mat...@strw.leidenuniv.de
There is a known compatibility issue in some compiled parts of 64bit Linux Maple 15 which causes a problem with some of the Fedora 16 x86-64 or ubuntu 12.04 x86-64 shared libs.

See this response by (Maplesoft employee) `dskoog` on Mapleprimes:

http://www.mapleprimes.com/questions/130220-Maple-15-X86-64-LINUX-Fedora-16-Log2#comment130515

The essence of that comment is that the issue should be resolved in Maple 16, and that if users of 64bit Maple 15 on Fedora 16 x86-64 Linux contact sup...@maplesoft.com then some workaround might be possible.

If one hunts around on Mapleprimes, one can see that the same issues appear for ubuntu 12.05 64bit as they do for Fedora 16. So, with luck, a Maple 15 workaround might work for both os those Linux distros.

acer

r...@cs.uni.wroc.pl

unread,
May 26, 2012, 7:17:43 AM5/26/12
to mat...@strw.leidenuniv.de
Hi, I have the same problem.
To reproduce this, it is even enought to ask Maple to compute

> log[2](2);

It seams to be a problem on Ubuntu 12.04 x64.

Has anyone figured out how to solve the problem?

r...@cs.uni.wroc.pl

unread,
May 29, 2012, 4:31:35 PM5/29/12
to mat...@strw.leidenuniv.de
Today, I received the response from Maplesoft support.
In short, the solution is to buy Maple 16.

Nasser M. Abbasi

unread,
May 31, 2012, 12:58:20 AM5/31/12
to
It will be nice if companies would publish bugs fixed
in each software release on a web site, so that if someone
is having a problem, then can just look it up and
see, and if it is fixed, and in which release it was
fixed.

--Nasser

Ezesez Geza

unread,
Jun 5, 2012, 10:39:59 AM6/5/12
to
What is worse, I wrote one workaround on the mapleprimes site, and
they deleted it!
So, if you copy over shared libraries from an older linux (eg. ubuntu
11.10),
everything from from /lib/x86_64-linux-gnu and libX* libx* from /usr/
lib/x86_64-linux-gnu
to a directory under your maple15 install directory, and tweak
LD_LIBRARY_PATH in the maple wrapper script,
it works.
On mapleprimes, they claim that the bug is due to a changed hflogb in
some of the libraries, but I was unable to find which lib this is
implemented in.
If we knew that, one could take hflogb, and the functions that depend
on it, from an older libc source, compile it into a separate shared
library,
and load it before maple using LD_PRELOAD.

-- Geza

Ezesez Geza

unread,
Jun 5, 2012, 10:54:11 AM6/5/12
to
Sorry, I was careless. It is there, but no answer.

tvi...@gmail.com

unread,
Apr 11, 2013, 11:08:31 AM4/11/13
to
Seems like for maple (without windows) the contents of the following packages from e.g. ubuntu 11.10 is needed:

libc6_2.13-20ubuntu5.3_amd64.deb

For X-windows version I also needed:

libx11-6_1.4.4-2ubuntu1_amd64.deb
libxcb1_1.7-3_amd64.deb
libxext6_1.3.0-3_amd64.deb
libxi6_1.4.3-3ubuntu1.1_amd64.deb

I linked the files into directory $MAPLEROOT/bin.X86_64_LINUX
This way no changes in the startup scripts were necessary.

Seems to work for as old as maple 12
0 new messages