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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  • How many registered mapleprimes members are there, I wonder. And what proportion of those post here? If the postings totals page is anything to go by, then these next figures might be close: >=0 posts: 3117 >1 post: 1122 >5 posts: 265 It's not quite clear, since it may be that someone can register more generally (for the maple application centre) and so get listed here. There is also some indication that there may have been 4736 mapleprimes members to register to date.
    Has Maple 11 changed the way you do mathematics? For me, it has. For me, Maple used to be a “mechanized mathematical assistant”. That is, when I was doing something mathematical, I would do it at my desk, with Maple on a computer beside me, to assist with some of the calculations. I used many sheets of paper; the papers were messy and disorganized. I would scribble equations, scratch out mistakes or recopy the good parts onto another sheet, have sub-results strewn about haphazardly, etc. With Maple 11, things are different. Now I do mathematics almost entirely within Maple. Now I keep everything in a document. I type formulae with 2D input, which looks much like how I would write things on paper, except neater. Graphics are interwoven with the formulae (and can be scribbled on). Mistakes are erased within the document. Sub-results are nicely put into collapsible subsections. The organization can, and of course does, change as I figure things out.
    Jacques posted a link to an interesting article in the New Yorker about feature creep. Perhaps we should ask whether Maple is suffering from this malady, but before doing so we really need to answer the question "what is Maple for?" So here's a place to say what you think Maple's main purpose is/should be. Here's my shot: Maple's prime purpose is to help teach math. J.Tarr
    The New Yorker has an interesting article on feature creep (via boingboing). Apparently research shows that we are drawn to things with an insane amount of features in them, then ``digital fatigue'' sets in, and then we prefer the simple versions.

    For double-precision ("hardware") real and complex floating-point operations on Matrices, Vectors, and Arrays Maple makes use of its external-calling mechanism to get to compiled code. A great deal of such compiled code for array operations requires what are known as Basic Linear Algebra Subprograms (BLAS). The BLAS libraries provide support not only directly for Matrix-Vector arithmetic but also indirectly in other external compiled libraries used by Statistics, ArrayTools, LinearAlgebra[Modular], etc.

    The input box for the email reply box is too short, either 4 or 5 lines. Consider increasing it to something reasonable.
    While working on acer's most excellent competition, I hit on a different competition that could be fun too: generate the longest valid obscure Maple expression that actually "does something". My entry: `#`@`&^`$-0!; It returns NULL ! And now I need to go back to finding entries for acer's competition.

    In the admirable quest to make Maple better and stronger, and since so few people responded to the Suggestion to add a searchable bug database here on mapleprimes, here's another tack.

    What are the fewest keystrokes that can make the TTY commandline interface of Maple 10.06 or 11 crash?

    By crash I mean something like bus-error or segmentation-fault, stack-limit-exceeded, or lost-kernel-connection. I don't mean a runaway computation that simply consumes all...

    Dear Sir: I am using Maple 11. I try to change the font and size of both input and output display in TEXT mode as a default mode. But, I can not find an option to change them under TOOLS menu. Could you tell me how to do? Thanks.
    Congratulation to Jacques on quickly passing the 600 mark. His time from 500 to 600 was impressively short. Just a brief note on stuff I've worked on over the weekend. A pretzel-based prettyprinter for Maple is working reasonably well. It inputs Maple source code and returns LaTeX macros. The prettyprinter handles line breaks, indentation, and uses user-configurable LaTeX macros to typeset keywords and operators. Currently I've gone overboard substituting symbols for operators, for example, instead of "A union B" it outputs "A \cup B"; that will be configurable. Haven't figured out ho
    Hello, I am trying to install Maple8 on Ubuntu Edgy. I managed to make Maple8 work on Ubuntu Dapper using this HowTo. But after upgrade to Edgy Eft Maple does not work. karel@stazka:/usr/local/maple8/bin$ ./maple /usr/local/maple8/bin.IBM_INTEL_LINUX/mserver: relocation error: /usr/local/maple8/bin.IBM_INTEL_LINUX/libmaple.so: symbol errno, version GLIBC_2.0 not defined in file libc.so.6 with link time reference karel@stazka:/usr/local/maple8/bin$ export LD_ASSUME_KERNEL=2.4.1 karel@stazka:/usr/local/maple8/bin$ ./maple
    This was discovered in 1999, but I thought I might share it since Maple was involved. I think it was the largest composite fermat number discovered until that period. http://www.spd.dcu.ie/johnbcos/fermat.htm
    I went through a chapter of the title, "Applications of Abstract Algebra With MAPLE", by Richard E. Klima, et al, and worked through the example of a Reed-Solomon Error Correcting Code. I thought I would share this. View 285_Abstract Algebra Application Reed Solomon Code.mw on MapleNet or Download 285_Abstract Algebra Application Reed Solomon Code.mw
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    Hi, one of my maple codes gave surprising results. After some debugging, it could be traced to a behavior that can be illustrated by the following code: f := proc(x := X) option remember; x; end proc: g := proc(x := X) x; end proc: X := 0: f(); g(); X := 1: f(); g(); The code outputs 0 0 0 1 Apparently, the fact that X has been updated is not considered in the remember table. Is this behavior documented? It is very counterintuitive; one would expect the 'remember' facility to be transparent and f() and g() to behave identically.
    Not sure if this is known or not, I couldn't find any reference to it. If you have a Maplet that you serve over the Internet using MapleNet, if the Maplet code has a trailing comment character - # -, then the Maplet won't display. You get the unhelp error message: "Exception is server did not return a correct Maplet Definition. Results were" It's a trivial problem once you find it, but finding it was not trivial. For the MapleNet developers. Take any Maplet, add a new line at the end of the file, put a comment character at the start of the line. The Maplet will not work. You can add the comment char to the .maplet file or to a .mw that is then exported. Happens in MapleNet 10.5 and MapleNet 11.
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