Jean-Michel Collard

MaplePrimes Activity


These are replies submitted by Jean-Michel Collard

@J F Ogilvie

- I would like spinors to be added in the Physics Package.

- the GMP Librarie version (big num library)  6.2.1 , Maple is still at 3.1.1 (https://gmplib.org/)

@gdikal

As to me I use it essentially for differential geometry with the Physics package and the GRTensor package.

I don't use very much Maple for anything else.

 

Hello all,

Incidently you forgot to mention Hawking. Hawking studied this thoroughly this model in 1973 (The large structure of spacetime)

I am working at the moment on this model with indeed the help of the Physics package.

You didn't also mention that is model has *closed timelike geodesics* , this means that we can travel in time.

Unrealistic of course but Gödel wanted to prove that "strange" models of the Universe verify the Einstein field equations.

Best,

Jean-Michel

Hello,

I would like that Maplesoft updates the great GMP Library to the latest version 6.2 ( https://gmplib.org/).

It's been years and years that Maple has the GMP 5.1.1 library.

kernelopts(gmpversion);
                            "5.1.1"


Best,

Jean-Michel

Hello all :)

It seems that this problem is happening for Windows users (then including me)??

Is there any linux and Mac users here with this problem?

Thanks.

Jean-Michel

PS: Mister Michalkvasnicka you should shut up! This is not a way to speak on a public forum to Maplesoft developers.

Thank you very much.

 

Hello each and everyone :)

I have the same problem with my Windows 10 Pro 2004 64 bit.

Kernel crash , the Cloud doesn't install something...

I have been helped a lot by Edgardo and two Maplesoft developpers.

Certainly I will not do it manually..I wait that this issue be resolved by appropriate people.

I have been using Physics for ages...I can wait *a bit*.

Kind regards to all,

Jean-Michel

Hello all,

I would like to thank publicly Paul and Brock from Maplesoft Support who

had a look at my computer and confirmed that the Maplesoft Physics Updates package won't install

even in Maple 2020.1.1.

Thank you so much.

Best to all,

Jean-Michel

Hello all,

 

I confirm... installing The Physics Updates package does not work in 2020.1.1

I have also "installed but not active".

Best,

Jean-Michel

Thank you Edgardo for your two posts regarding my problem.

Yes I install all my math softwares under C:\Maths

Best,

Jean-Michel

Thankx a lot Tomleslie :)

Best

Jean-Michel

Sorry but I don't know how to delete a post.

To answer your question here is what you asked for :

Physics:-Version();
The "Physics Updates" version "716" is installed but is not

   active. The active version of Physics is within the library

   C:\Maths\Maple\lib\maple.mla, created 2020, March 5, 2:36 hours


libname;
"C:\Maths\Maple\lib", "C:\Users\jm\maple\toolbox\GRTensorIII\lib"

The Physics Updates has one and only one file : version.txt which is :

package-title: Physics Updates
cloud-id: 5137472255164416
cloud-version: 716
cloud-link: https://maple.cloud
install-date: 2020-07-02 21:22

Best,

Jean-Michel

 

 

 

@ecterrab

hello,

Here is what I have :

libname;
"C:\Maths\Maple\lib", "C:\Users\jm\maple\toolbox\GRTensorIII\lib"

Physics:-Version();
         The "Physics Updates" package is not installed

I uninstalled and reinstalled *twice* Maple ...I don't understand.

Thanks you.

 

Tremendous app. When I am to bed in the evening I happen to play with it, no need to take

my 15 kg computer under the pillow :)

@tomleslie 

Here is what I exactly get in Maple 2018.1:

n := 4000;
M1 := LinearAlgebra:-RandomMatrix(n, n, datatype = float[4]);
M2 := LinearAlgebra:-RandomMatrix(n, n, datatype = float[4]);
CUDA:-IsEnabled();
                             false
tNoCUDA := time[real](M1 . M2);
Error, Got internal error in Typesetting:-Parse : "internal error in PostprocessRec: dDOT(_Inert_NAME("M1"),_Inert_NAME("M2"),Typesetting:-sumprodinfenced)"
Typesetting:-mambiguous(Typesetting:-mambiguous(

  tNoCUDAAssigntime(real)ApplyFunction(M1middotM2),

  Typesetting:-merror("Got internal error in Typesetting:-Parse

   : "internal error in PostprocessRec: dDOT(_Inert_NAME("M1"),_\

  Inert_NAME("M2"),Typesetting:-sumprodinfenced)"")))
CUDA:-Enable(true);
                             false
CUDA:-IsEnabled();
                              true
tCUDA := time[real](M1 . M2);
Error, Got internal error in Typesetting:-Parse : "internal error in PostprocessRec: dDOT(_Inert_NAME("M1"),_Inert_NAME("M2"),Typesetting:-sumprodinfenced)"
Typesetting:-mambiguous(Typesetting:-mambiguous(

  tCUDAAssigntime(real)ApplyFunction(M1middotM2),

  Typesetting:-merror("Got internal error in Typesetting:-Parse

   : "internal error in PostprocessRec: dDOT(_Inert_NAME("M1"),_\

  Inert_NAME("M2"),Typesetting:-sumprodinfenced)"")))
evalf(tNoCUDA/tCUDA);
                            tNoCUDA
                            -------
                             tCUDA
CUDA:-Enable(false);
                              true
CUDA:-IsEnabled();
                             false

BUY a brain and eventually post here !

 

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