The following 2 sums are equal,

Back in July of 2005, one of the early Tips & Techniques articles (since updated) in the Maple Reporter was a comparison of two different approaches to fitting a circle to 3D data points. The impetus for the comparison was Carl Cowen's article on the subject. His approach was algebraic - he used the singular value decomposition to obtain a basis for the...

My wife will testify that I am horrible when it comes to keeping things organized and tidy. My colleagues who have seen my office can attest to this as well. My usual defence is that a messy environment is an indication of how busy you are (consequently how productive you are) and basic creativity. But every once in a while, usually when I hit a mental block, I launch into clean up mode to do something completely different hoping that when I’m done, my mental block will be gone. I just went through one of these moments. This time, my cleansing took me to the bottom of one of my office desk drawers to a pile of photos that I had stashed in there ten years ago. Glancing through these, four immediately jumped out and helped me flash back to some key moments in my life. Yes, my 15 minute sabbatical digging through my desk was one of the most productive quarter hours I’ve had in a long time. Here, then, are these four photos that respectively offer a compelling reason to reflect a bit on the past ...

If you're interested in scientific fonts, the 1.0 version release of the Scientific and Technical Information Exchange (STIX) fonts was announced today (May 28, 2010).

See here for its main page, or here for wikipedia's point of view.

Recently, Markiyan Hirnyk asked how to find all Hamiltonian cycles in a graph using Maple.

Here is a procedure using Ham Cycle unix tool (which is GPLed) in Windows.

First, one has to download it from the link above and put in his/her cygwin home directory, /cyg/home/Alec for me. Then start cygwin shell, extract the downloaded archive and cd to the extracted directory,

My personal icon is gone.

What's happened to it? 

Is there any other good way to get better Quality Assurance on the items on the Application Center?

It seems that community ratings just aren't adequate. I don't mind that lots of items are a bit thin in the content aspect. But bad advice is a problem.

Take this example, where Matrix-Matrix multiplication is suggested primarily in the following...

Could the Student:-Calculus1:-Hint routine detect that its answer(s) will result in an endless cycle (even if only cycles of length 2)? Maybe it could check, and not make such hints?

Below is just one example. Sure, its hint is not great here, due to which this is not a fantastic example. But I'm still wondering about cycling prevention for Rule&Hint in general.

This is Maple 13.01.

> restart:
> with(Student:-Calculus1):

> Int((x^2+a...

As some of you noticed, we launched the new version of MaplePrimes today. Unfortunately, we have ran into server problems with the new site, and have switched back to the old version of the site. We are working on figuring out what the cause of the problem is, and will be re-launching the new site soon.

UPDATE: WE have made some changes to the site that have fixed the problem we experienced before. Please enjoy the new and improved MaplePrimes!

From the outset, the goal of MaplePrimes was to provide the Maple & MapleSim user communities with a platform to ask questions, share knowledge and to collaborate with other users.  And for the most part, the site has exceeded these goals.  Since its inception in 2005, we have received tens of thousands of posts from over 10,000 members, and we are privileged to have accumulated a group of dedicated, knowledgeable users who have become the heart of this community.

With MapleSim it is possible to simulate electronic components. But it is not possible to build a model from an existing electric layout. This means, I have to copy for each electric part the data from the datasheet by hand and to connect them. For simple layout this is time consuming, for complex layouts it is impossible.

There are Layout software like EAGLE ( http://www.cadsoftusa.com/index.htm.en ) to build up complex electric circits, with the data and geometry...

Since the MRB constant is an alternating sum of positive integers to their own roots, f(n)=(-1)^n* n^(1/n); a thorough understanding of the changes in f, as n changes, is important.
In this blog we will begin to explore the derivative of f at integer values of n, and as n-> infinity. I am not sure weather this will help us in computing more digits of the MRB constant since we already know so many,

The optional e-mailing about new replies to the participated topic would be useful.

I thought that some of you would be interested in Tom Lee's latest blog post at Maplesoft.com regarding MapleSim 4, and what it means to both Tom and Maplesoft.   As always, your comments and thoughts are greatly appreciated.

You can read his post here.