The following type of difference in behaviour, due to deterministic ordering of sets as introduced in Maple 12, may affect implementations of some algorithms.

    |\^/|     Maple 11 (X86 64 LINUX)
._|\|   |/|_. Copyright (c) Maplesoft, a division of Waterloo Maple Inc. 2007
 \  MAPLE  /  All rights reserved. Maple is a trademark of
 <____ ____>  Waterloo Maple Inc.
      |       Type ? for help.

> seq(x, x in {a,b,c,d,e,f,g}) assuming d>0;
   ...

I have recently been working on a problem using fractional calculus and have come across something in Maple's fracdiff  command that makes no sense to me.

Consider the function y:=a+b*(x-q)+c*(x-q)^2

z:=subs(x=q,fracdiff(y,x,1)) gives the correct answer of z:=b, z:=subs(x=q,fracdiff(y,x,2)) gives the correct answer of z:=2c, z:=subs(x=q,fracdiff(y,x,3/2)) gives the answer of z:=4*sqrt(q)*c/sqrt(pi)

Last week I had the distinct pleasure of attending the retirement celebration for Dr. Keith Geddes, founder of Maplesoft and inventor of the Maple system. I’ve known Keith for over 20 years now and I consider him one of the few people I know well who has had, without exaggeration, a profound impact on the world.

Keith earned his chops as a numerical analyst in the 1970’s. Then as a young faculty member at the University of Waterloo, he developed an interest in symbolic computation. The lore has it that he had no intention of designing a complete new system but wanted to use the “grand-daddy” of symbolic systems MACSYMA from MIT. During those wild frontier days of computing, the only way to get access to such specialized systems was remote dialing to the MIT machine in the wee hours of the night (to reduce phone costs),  using  a 90 Baud modem … those were the days!

Hi! The following worksheet considers two methods for using given bases to find the change-of-coordinate matrices and coordinate vectors. One method uses matrix manipulation and the second uses the solving of systems of equations. The worksheet uses a Brief Review to describe both processes and the examples are used to show you how to use both processes as well as to illustrate how they are related.

Hi!

This worksheet contains three examples that show you how to:

 

• Obtain the quadratic form
• Obtain the matrix of quadratic form
• Diagonalize the quadratic form to transform it into a

In a previous post  I asked what happend to the Casio PDA that could run a special version of Maple V, as I am interested in purchasing "something" that would provided symbolic capability in a portable format. As it appears that this particular Maple project died a horrible death, I am still searching for this particular mathematical nervana. One possibility is to use a netbook with Maple V, or a CAS calculator such as the HP 50g or the TI voyager. So I am interested hearing of anyones experiences/recommendations with any of these devices.

I recently migrated to CentOS 5.2 Gnome.  I found that I often encounter loss of keyboard control.  Maple reacts well to my mouse, but to nothing from my keyboard.

I don't know how to reproduce the phenomenon, but it often happens when I switch back from another desktop workspace.

I found that when I open a new document and back, the keyboard control will return.  What's the problem?  Anyone else encountered the same problem?  How can I solve?

Thanks!

I suspect this phenomenon is related to my topic on hanging with right click on selected text, but it is more general.

I have an execution group (in a standard worksheet in worksheet mode with 2D input) with about 65 lines (when comment lines are included) and 30 lines (when comment lines are removed) . It was taking a very long time to compute after each time I changed anything in the group, but computed very quickly thereafter if I changed nothing. After some experimenting, I discovered the following phenomenon.

Is there a reason that there are not dates in the Maple 12 File Open dialog box window.  There seems to be headers for "Name", "Size" and "Modified" but on my computer, the file type is contained in this "Modified" column instead of the file modified or creation date.

Thanks,
Paul

For one (and only one) execution group (on a worksheet with many execution groups, both before and afterwards) which was modified by a student but which looks perfectly fine, a right click on any selected text causes Maple to hang (before any context menu appears). When I look at the mserver.exe process on Task Manager, it continues to use 99% of the CPU and keeps increasing its memory use.

The MapleSim Connectivity Toolbox is now available. With this toolbox, you can export MapleSim models to Simulink, including rotational, translational, and multibody mechanical systems, thermal models, and electric circuits. It creates Simulink S-Function blocks for fast execution within Simulink and real-time implementation through Real-Time Workshop.

For more information, see

Maple 11 - I'm trying to implement the explicit formulas for the three cubic solutions. I tried typing them in explicitly from other sources to no avail, for some reason or the other. Right now I'm currently using: solone, soltwo, solthree := solve(a*x^3 + b*x^2 + c*x + d): solone:=unapply(solone,a,b,c,d); soltwo:=unapply(soltwo,a,b,c,d); solthree:=unapply(solthree,a,b,c,d); The only problem is that, these solutions degenerate when the descriminant is equal to zero, for example:

Is possible to understand how to use maple 12 to input equations like this. I have difficulty in understanding the help section of Maple. I dont see the functions listed in any of the pallettes as they are in my homework.

Thank You. I appreciate your time.

1.)Find the Fourier series for the function:

  Hello,

 

 I have recently started the following error with maple on fedora 10 when I execute the classic worksheet with maple -cw or xmaple -cw I get the following error

 

maple -cw

*** glibc detected *** /home/EUIX/Programs/maple12/bin.IBM_INTEL_LINUX/maplew: free(): invalid next size (fast): 0x09af87a0 ***

======= Backtrace: =========

/lib/libc.so.6[0x7a13a4]

/lib/libc.so.6(cfree+0x96)[0x7a3356]

I wonder what virtue there would be in an "assistant" in the Standard GUI to show and allow control of the interface settings.

In the absence of a built-in assistant (or tab in the Tools->Options panels) I wonder whether a simple Maplet would serve.

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