MaplePrimes - Blogs, forums, help, musings, answers ... all things Maple and math

Maple Mentor Awards: The Big Kahuna

Tim Vrablik — Mon, 17 Nov 2008 10:29:16 -0500

Just to clarify, this is not a post to discuss the character played by Cliff Robertson in the movie Gidget....this is much bigger. This is to announce who the Maple Prime's Mentor of the Year is. But before I get to that, I would like to thank all members of the Maple Primes community for their contributions over the past year. I hope that you will continue to be active and contribute regularly to Maple Primes.

new package adoption

acer — Fri, 14 Nov 2008 23:58:44 -0500

Every now and then someone will post here on Mapleprimes and the code will use an older package such as linalg or stats. Quite often it is clear that the poster is new to Maple. Yet these packages have been superceded with new ones, eg. LinearAlgebra and Statistics.

One obvious question that then arises is: how did this user decide to use the older package?

Conjectures ripe for Maple experimentation

JacquesC — Wed, 12 Nov 2008 15:37:53 -0500

Some time ago, I had a blog post about a compendium of inequalities, Some people took a look and found problems in that paper. So I took the time to track down the author and point him to the mapleprimes page.

He got back to me some time later, thanking me for pointing out the errors. But in the same email, he pointed me to 2 other papers, http://xxx.lanl.gov/abs/0707.2098 and http://xxx.lanl.gov/abs/0707.2584 which contain (interesting?) conjectures which seem amenable to Maple exploration. I meant to look at these myself, but it has now become clear that I won't for quite some time yet. Perhaps these will pique the curiosity of some MaplePrimes member.

overloaded operators

acer — Wed, 5 Nov 2008 00:00:32 -0500

Over on the usenet newsgroup comp.math.soft-sys.maple, someone asked about using Maple's overload facility to redefine the operators such as `*`, `+`, etc.

The difficulty for the submitter is that while overload (and option overload for procedures) can provide enhanced operators for new routines, it doesn't affect routines saved in the Maple Library which already have their bindings. Overloading does not subsequently change the bindings of the operators when used in (most all) Library routines.

One way to try and get around this is to actually redefine the global operators. And since overload is on topic, one can still use it in the replacements that one writes.

In order to redefine global operators one must first unprotect them. They are protected for a very good reason. If the replacements are not adequate then Maple can fail in a multitude of ways. It's a case of caveat emptor.

Invitation to Join the Maple Global Network on LinkedIn

Fred Chapman — Sun, 2 Nov 2008 02:21:11 -0500

Dear All,

I am writing to invite every MaplePrimes member to join the new Maple Global Network group on LinkedIn, which you can find at this address:

http://www.linkedin.com/e/gis/846497

Maple 12.01 is now Available

Will — Mon, 20 Oct 2008 08:59:32 -0400

Maple 12.01 is now available. The Maple 12.01 update includes enhancements in a variety of areas, including:

Differential equations and differential algebraic equations: Numerous enhancements to performance of numerical solvers
MATLAB link: Extended to include support for MATLAB 2008b
Language packs: Updates for Spanish, Brazilian-Portuguese, Greek, Japanese, and Chinese
Plotting:
- Improved behavior in plot3d when using numpoints and grid options
- The plots[display] command now handles dual-axis plots inside array plots
Graph Theory: Context-sensitive menus updated to include more graph theory commands
Other improvements were made in:
- Numeric integration
- Physics package
- SolveTools package
- ArrayTools package
- Debugger

Multiple left single quotes

jakubi — Sat, 11 Oct 2008 20:12:41 -0400

For a single pair of left single quotes, ?name is clear:

Any valid Maple name formed without using left single quotes is precisely the same as the name formed by surrounding the name with left single quotes.

So this is fine:

`x`;
                      x

But what about multiple left single quotes? This help page also states:

Mentor Awards: Wake me up when September ends

Tim Vrablik — Thu, 9 Oct 2008 09:28:23 -0400

Okay, so September ended last week...but I am awake.

Seeing as we came to the end of another quarter (and this time I noticed it on time), we have to awards to distribute this month:

opening worksheets in existing Maple session (externally)

acer — Tue, 30 Sep 2008 22:47:34 -0400

Here's a first working shot at an external, programmatic mechanism for opening .mw worksheets/Documents as new tabs in an already running Maple Standard GUI session.

This involves a `sh` shell script, runnable in Unix/Linux/OSX/cygwin. Maybe someone could post a MS-Windows .bat batch file equivalent.

"New" Mersenne Primes

momiji — Sun, 28 Sep 2008 20:26:28 -0400

Anyone want to try isprime(2^43,112,609-1) for me?

(see also)