MaplePrimes Commons General Technical Discussions

The primary forum for technical discussions.

Every now and then someone will post here on Mapleprimes and the code will use an older package such as linalg or stats. Quite often it is clear that the poster is new to Maple. Yet these packages have been superceded with new ones, eg. LinearAlgebra and Statistics.

One obvious question that then arises is: how did this user decide to use the older package?

I just did a google search on

<p>How do I render 3D plots from command line maple on Mac OS X? (My calculations are memory intensive and I can not spare the huge memory that the GUI requires.)</p>
<p>On my old Solaris box, I would use <br />
>interface(plotdevice = x11);<br />
but it appears Maple has not written a X11 driver for the Mac.</p>
<p>Presumably Maplesoft wants me to use an alternative plotdevice, such as "postscript" or "jpeg", but I can not find one which allows me to rotate the rendered plot.  What am I missing?</p>

From a previous thread, out of curiosity, I tried to find _EnvMaxCosetsToddCoxeter.  I could not do it using the built in help.  Now if I type ?group,pres, I can get to the help page for that item, and there it mentions _EnvMaxCosetsToddCoxeter and if need be, this value can be increased, using standard assignment operators.  O.K.  But where is a document that has the complete list of environment variables that can be changed and the details associated with each of those environment variables.&nb

   Hello.

   If you try to update Maple 12 to Maple 12.01 on a Macintosh with Maple1201MacUpgrade.app you will remark that "nothing happens".

   There is a permissions problem within the updater.

   To correct it, open a Terminal and type

chmod a+x /path/to/updater/directory/Maple1201MacUpgrade.app/Contents/MacOS/*

    HTH

 

Over on the usenet newsgroup comp.math.soft-sys.maple, someone asked about using Maple's overload facility to redefine the operators such as `*`, `+`, etc.

The difficulty for the submitter is that while overload (and option overload for procedures) can provide enhanced operators for new routines, it doesn't affect routines saved in the Maple Library which already have their bindings. Overloading does not subsequently change the bindings of the operators when used in (most all) Library routines.

One way to try and get around this is to actually redefine the global operators. And since overload is on topic, one can still use it in the replacements that one writes.

In order to redefine global operators one must first unprotect them. They are protected for a very good reason. If the replacements are not adequate then Maple can fail in a multitude of ways. It's a case of caveat emptor.

Hello

I have installed Maple 7 on my computer because I can't install a third time Maple 12 Student Version.

Is there a way to use my Maple 12-Maplets and to create maplets on Maple 7 ?

 

 

There is quite a difference in the way plot and plots:-pointplot handles colors when using lists of HSV or HUE values.

In the first example below the colors are quite different when using plot and pointplot with HSV.

In the second example plot handles HUE values, but pointplot reports an error.

#First HSV

plot([k$k=0..4],0..1,color=[seq(COLOR(HSV,k/4,1,1),k=0..4)],thickness=50,axes=none);
plots:-pointplot([[k,k]$k=0..4],symbolsize=100,symbol=solidcircle,color=[seq(COLOR(HSV,k/4,1,1),k=0..4)],axes=none);

#Now HUE.

What single change in Maple would you want more than any other?

Maybe it's an enhancement, or a functionality change, or a bug fix.

Hello, What is the best PC that can do complicated calculations fast? processor? RAM? chace? ..? Thank you

Hi

I installed Maple 12 on Windows XP Sp3 and activated it. Maple 12 starts without any problem. When I want to evaluate an expression, context menu doesn't open. Cursor stay busy a moment and return normal. I have already installed Java Version 6 Update 10. Maybe, java version I have installed caused this problem. But I'm not sure. Can anyone tell me how to fix this problem. 

 

I am trying to export a plot object generated by implicitplot3d, for use and manipulation without Maple.  I am using Maple 11.02 (10/11/07) on Windows XP.

I therefore seem to have three choices:

1. POV.  My exported object does not render in pov-ray v3.6.

2. DXF.  My exported object does not read in TrueView, and reads as black in SolidWorks eDrawings and another freeware viewer.

Hello,

I have activated 2 times Maple 12 and I have tried to activate it a third time on my new computer but it doesn't work:

There is this message: the maximum number of activations has been reached.

Must I buy Maple 12 again?

As some expressions involving 'floor' and 'ceil' did not simplify as I have expected, I have gone to basics. In ?trunc > Description it is stated:

ceil(x) = -floor(-x)

But 'simplify' does not seem to know about this equation as this expression should simplify to 0:

simplify(ceil(x)+floor(-x));

                         floor(-x) + ceil(x)

In principle, this seems to be a weakness in 'simplify'. For comparison, in Mathematica 5:

Hey,

 

I've a problem with my maple version right since some time.

Every time I want to print the printing dialog states in the status line of the printer: "No jobs will be accepted" (this is freely translated from german).

also piping the output into a file doesn't work, it simple doesn't create that file.

If I start xmaple in a shell I got this:

Has anyone tried the technique used here, to run Maple 12's 32bit Classic GUI with the 64bit Maple 12 kernel binaries, on Linux?

Should I try and update it to work with Maple 11 or 12?

It looks like some symlinks would have to change or be added, relative to the way that I did it for Maple 10.

Has anyone ever tried to do a similar thing on 64bit Windows?

Dave L

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