MaplePrimes Posts

MaplePrimes Posts are for sharing your experiences, techniques and opinions about Maple, MapleSim and related products, as well as general interests in math and computing.

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  • It is already September and there has been no updates for the latest Maple release.  Am I to expect that when I purchase the newest copy of Maple that what I buy is what I get and there maybe no updates?  I mean Maple 10 was on the market for a full 2 years with updates, 6 to be exact, so users must have pretty satisfied with the service, hopefully.  And Maple 11 users had their version on the market 3 months longer than Maple 12 although from...

    A new edition of The Mathematics Survival Kit – Maple Edition is now available.  It contains 25 new topics, which were created in response to requests from readers of the first edition of the book. New materials range from basic operations such as factoring and fractions, to graph sketching, vectors, and integration.

    The Math Survival Kit gives students the opportunity to review exactly the concept or technique they are stuck on, learn what they need to know,...

    As a user of Maple 13, namely in computations on General Relativity & Tensor Calculus, I would like to let you know I just got, using Maple 13, the WRONG SIGN (positive Riemann scalar curvature in stead of correct NEGATIVE Riemann scalar curvature) in studying a threefold used as a 'Public Space' by Milne many years ago.

    The square of the distance on the said threefold is dE^2=dR^2+(c*t0)^2*sinh(R/(c*t0))^2*(dtheta^2+sin(theta)^2*dphi^2) and you might be interested...

    If I assign a list to a variable named depth it causes invalid object errors in for loops for Maple12

    depth:=[1,2,3,4,5,6,7,8]:

    for i from 1 to 4 do
      i;
    end do;

    Error, invalid object: mspace(height = "0.0ex",width = "0.0em",[1, 2, 3, 4, 5, 6, 7, 8] = "0.0ex",linebreak = "newline") and  1 additional error.

     

     

    As sometimes the question comes up "how to have a pdf documents for this?" here is a free way to such on Windows:

    PDFCreator

    Essentially by that you install a printer, which just does it. And as such allows to print threads here from the board, or Maple sheets or simply from any application.

    After some configuration hanky-panky it is easy to use.

    When I see a listing of my own posts/questions, I would rather like to see a listing much like in the format shown here www.mapleprimes.com/recent/all  showing the postings less all the summaries. 

    This would speed up my searching if I, or anyone else, was looking for a particular post of mine, or someone elses.

     

    Let's compare the performance of two methods of computing the inverse of a large datatype=float[8] Matrix.


    The two methods are that of calling `MatrixInverse`,...

    If you want better performance then don't use 2D Math mode to enter procedures which call  `.` (dot).

    The following timings are not the result of the order in which the cases are performed. The timings stay roughly the same if the blocks delimited by restarts are executed out of order.

    Most of the comparisons (that I've seen so far) amongst Maple, Matlab, and Mathematica are either incomplete, inaccurate, or biased.

    This collection of three articles [1 (1), 2 (2),

    Although I mostly post about parallel programming, my background is in algorithms and data structures.  I have a soft spot for sorting algorithms.  It probably started when I did some research into adaptive sorting as part of my coursework.  Anyway, someone added sound to visualizations of different sorting algorithms.  I'm not sure if it really helps explain the algorithms any better, but it does make them more interesting to watch.

    http://www.geek.com/articles/geek-cetera/sorting-algorithms-quite-boring-until-you-add-sound-effects-20100819/

    Darin

    Though (currently) there have been 2 changes after hirnyk's reply (=21h ago, the others 18h and 14h)
    the page for recent/all says: 21h old. Who ever wants to look in such, so discussions will die early.

    What an incredible mess, that this still is not solved after month. It really spoils the rest of interest to
    follow things here at the board, or even to contribute.

    Important new updates are now available for Maple T.A. 6.  These updates improve performance and stability in areas related to the gradebook, assignment editor, question repository, course module import, and Blackboard and MapleNet integration.

    In addition to these improvements, Maplesoft has also released language packs for French and Traditional Chinese. These language packs are a result of the new translatable interface in Maple T.A. 6. If your institution requires...

    I used to have a blog entry which contained an except from an Isaac Asimov story entitled "The Feeling of Power".

    I had removed that blog entry, but here is a link to the full text.

    I was recently reminded of it by two things. The first was that I was reading a blog entry at Walking Randomly which mentioned Maple 14. And I remembered noticing a page on that site before. And the second was ISSAC 2010.

    Dear Maple users

    I use Maple in my physics class in high school. In connection to that I have stumbled on a couple of oddities with the new version 14:

    It looks like a bug, that Maple...

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