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.

I think I found a bug (at least in 9.5 and 13): int(BesselK(1,t)*t^2,t=0..x); produces a function of x which is a correct antiderivative, but is not equal to 0 for x=0. In fact, it is -1 (well, the limit of x to 0). So in the result of the above integral the term +1 is missing.

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.

In 1988, Keith Geddes and others involved with the Maple project at the University of Waterloo published a Maple Calculus Workbook of interesting calculus problems and their solutions in Maple. Over the years, I've paged through this book, extracting some of its more unique problems. Recently, I extracted the following problem from this book, and added it to my Clickable Calculus collection, which I use for workshops and web-based presentations.

Go Habs Go!

Three recent articles in the Tips & Techniques series addressed the question of stepwise solutions in Maple. Just what is it that Maple provides by way of stepwise solutions for standard calculations in the mathematical curricula? There are commands, assistants, tutors, and task templates that provide stepwise calculations in precalculus, calculus, linear algebra, and vector calculus. In addition, since Maple can implement nearly any mathematical operation, any stepwise calculation can be reproduced in Maple by assembling the appropriate intermediate steps, just as they would be assembled when working with pencil and paper.

The HDF5 file format offers a lot of advantages for data management, particularly with large scientific datasets.  It is provided by the HDF Group [http://www.hdfgroup.org/].  MATLAB and R have routines to load datasets from HDF5 files into memory.  It would be great to have the same capability in Maple.  Has any work be done to import and export Maple data and HDF5?

Last week, I announced that the new MaplePrimes was going to be launched this week. Unfortunately, that won't be the case. The reason is that we will be powering the search on new Primes with our Google Mini. Unfortunately, the influx of all of the new Primes content and online help content caused us to fill up the hard drive on the server that Maplesoft currently owns.

I have to thank my friend John Wass, an editor from Scientific Computing magazine who began a recent article with the clear warning “Attention Engineers! The developers at Maplesoft rarely sit still for very long.”  This was a comment on the thrilling speed that enhancements are flowing from the MapleSim pipeline. Although his quote refers to a MapleSim 3 article he wrote, I chuckled as the sentiment still rings true as my colleagues and I catch our breaths after the recent release of MapleSim 4.  Yes, the engineering community has definitely taken notice that MapleSim, in such a short amount of time, is already making a big difference in the way we do and think about modeling.

The MaplePrimes community continues to provide very helpful feedback about how well the product is working (and how well it isn’t!).  Thank-you.  We always appreciate your taking the time to report these problems so we can make our products better.  Maple 14 includes several fixes that were made specifically in response to reports made from MaplePrimes, including improvements in:
•    Polygon plots
•    StringTools
•    fsolve
•    Density plots
•    Operator overloading
•    Typesetting involving mods in 2-D math
•    Extensions to DocumentTools[Do] for programmatic refresh of components
•    Searching online help

It appears this has come up quite a number of times (I have even wished this option existed for some of my worksheets).

There is no option to set the pixel size of a window for the plot as an option.  You must use your cursor to adjust the size of your window.  Even globally set the window size as I believe someone has mentioned before would also be a nice addition.