Questions on Mathematica packages, which are self-contained bundles of Mathematica code that add new functions and other functionality.

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4
votes
2answers
323 views

Simplifying the trace of a matrix expression

I have a long expression involving matrices that I derived using the NCAlgebra package. Can I simplify the trace of the expression? For example, say b is a scalar ...
9
votes
2answers
701 views

Why is JLink loaded every time I start Mathematica?

When I start a Mathematica 8 session (either command line or with the notebook front end), I notice that there are several packages that have already been loaded for me (using ...
5
votes
2answers
289 views

Package relative file path specification

I have some packages inside a folder (named Packs) that is in the same file level of some executed package. ...
3
votes
1answer
350 views

How to load a custom mathematica package from a .m file?

I would like to load the package groebner50.m which is available through the website of David A. Cox. It's supposed to contain some useful tools for commutative algebra, but I haven't been able to get ...
2
votes
2answers
521 views

Packages problems on version 9 under OS X

Using Version 9 on OS X, I've run into some problems with creating packages and accessing them. I've done the following: wrote all the function definitions in a notebook and tested that they all ...
13
votes
1answer
220 views

Creating documentation for sub-packages in Workbench

I'd like to create proper documentation for a package of mine, and Workbench in principle provides the tools to do this. However, I've split my package into multiple sub-packages (because I found it ...
16
votes
2answers
5k views

How to install packages?

This is always a problem when I distribute my packages to colleagues working on different platforms. I have my packages installed into a private directory and I autoload some of them when Mathematica ...
14
votes
2answers
181 views

How to find out what files are touched when Get is called?

Is there a way to capture all package files touched whenever a package is called via Get, Needs, ...
11
votes
1answer
276 views

Making a Mathematica package manager?

I'd like to get a serious discussion started about a package manager. This has come up elsewhere, and many people have implemented their own solutions. It would be nice to have a standardized way to ...
12
votes
2answers
380 views

Compile for deployment

Is there any way (other than the manual one) to grab all the functions a notebook uses from the different user-defined packages and putting everything into one file to deploy the code for e.g. CDF? I ...
8
votes
3answers
606 views

How can I make private functions inside packages

I want to make private functions.for that purpose,I wrote the following code. BeginPackage["Test1`"] Begin["`Private`"] function1[x_]:=x End[] EndPackage[] I ...
15
votes
3answers
412 views

What is the purpose of tags like :Name:, :Context:, etc. in packages?

I noticed that all of the packages that come with Mathematica start with a header that is in a standard format. (See e.g. the header of NIntegrateUtilities` at the ...
13
votes
1answer
530 views

Does anyone have experience with performing symbolic regression using Mathematica?

I understand that there is at least one Mathematica package, DataModeler commercially available for symbolic regression. I'm seeking any observations with this or any other similar tool. I'm ...
13
votes
1answer
880 views

Using a different R version with RLink

I wish to use a different version of R than what is provided by Mathematica 9. For example, I want to use the Macports version of R, where R_HOME is ...
11
votes
1answer
1k views

Load a Mathematica Package via .Net code

I'm using C# to pass data to Mathematica and return graphs: ...
8
votes
1answer
615 views

How to properly DumpSave & Get Global`s symbols inside packages while not touching Global context?

For efficiency reasons I prefer to use DumpSave instead of Save. For ease of access I prefer to save symbols in ...
5
votes
1answer
518 views

How to use MathPSfrag package in Mathematica 10?

I am interested to use LaTeX like labels in the plots that I prepare in Mathematica, and hence, I downloaded the MathPSfrag package from this website ...
12
votes
3answers
270 views

How do I put my packages into Dropbox

I don't want to necessarily put my packages in Mathematica's $UserBaseDirectory, which is on my local hard drive. Can I somehow tell Mathematica to look for ...
9
votes
3answers
715 views

Can't load LevelScheme package

I am trying to use Mark Caprio's LevelScheme package for customizing graphics, but I haven't been able to get Mathematica to load the package using Get or ...
8
votes
2answers
224 views

How to unprotect a variable in a package

In Mathematica 9, I had the function(s). I apologize for the weak formatting. ...
5
votes
1answer
175 views

How to use Get on a folder

In the documentation for Get it says: If the file found by <<name is a directory, the Wolfram Language will try to ...
5
votes
2answers
191 views

Loading custom notation on startup without showing the Notation palette

I was creating some custom notations using the Notation package and it works fine. I put it in my default personal package, and it loads fine on Mathematica's startup. To make it complete I need just ...
4
votes
1answer
211 views

How to transform a DumpSaved .mx file to .m file conveniently?

I have many DumpSave-d .mx files under a directory. They are generated under Linux. The .mx ...
3
votes
1answer
238 views

Package autoloading not working in CDF and Player Pro

I have made a package BeginPackage["top`"] t[x_]:=MessageDialog["This is top"] t1[x_]:=MessageDialog["This is top1"] EndPackage[] and used the code of this ...
10
votes
1answer
509 views

Where to download the MathWorld package?

I was trying to run some notebook I downloaded from MathWorld, but lots of them need << MathWorld`Curves` I tried to google it , only to find this, but ...
9
votes
2answers
165 views

Inconsistent behavior of undocumented Encode->Import->StringToStream->Get on password-locked stream

Let's save a definition. Encode it with password/key and Get it again. We will not use Get ...
5
votes
1answer
248 views

VariationalD giving the wrong solution?

EDIT: As pointed out in the comments, VariationalD gives a variational derivative (which I don't want), not a derivative with respect to a function (i.e. ...
5
votes
1answer
1k views

FeynArts not working properly

So I have installed all FeynArts folders (from 3.5 to 3.7) with FeynCalc 8.0.1., and none of it is working properly :\ First I load the path to specific FeynArts package (3.5 for instance), then, by: ...
4
votes
1answer
196 views

Possible Bug of loading Package @ Mathematica 10.1

When I open mathematica, there will pop-up some messages where << package` is in the following file ...
4
votes
1answer
377 views

Perturbation theory in general relativity using xAct

I'm trying to use the xAct Mathematica package for manipulating tensors, and I'd like to plug in a metric into the perturbation equations to first order in general relativity, and have everything ...
4
votes
2answers
315 views

How to use SuperLog by loading SMLE.m

I am researching a software reliability model that has many parameters that need to be estimated. I want to use a maximum likelihood estimator (MLE) to estimate those parameters. After I searched ...
4
votes
2answers
169 views

Function behaves differently inside a package than outside

I defined a function TestHead in a notebook as follows: TestHead[z___] := TrueQ[{z} == Cases[{z}, x_ /; Head[x] === avar]] to ...
3
votes
2answers
72 views

Use of Ito's lemma in ItosLemma.m (or any other method in Mathematica)

This is a follow-up question on this question: Use of Ito's lemma in ItoProcess My problem is to find some method how to use Ito's lemma in Mathematica. As an example: How can I apply Ito's ...
3
votes
1answer
221 views

Creating event handler with ImplementJavaInterface inside a package

I am trying to make my Mathematica function to serve as an event handler for the events generated by a Java object. Specifically, I have a Java object that connects as a client to a server that ...
12
votes
2answers
262 views

Is there a bug in AssociatePairs?

Bug introduced in 10.0 and fixed in 10.1.0 In Version 10, the GeneralUtilities package contain some useful functions. ...
9
votes
2answers
182 views

How to define UpValues in a different context from within a package

I'm trying to create a function (in a package) to import a lot of data and create a symbol with UpValues to return specific results about the data. I've got it working fine in a regular notebook, but ...
8
votes
2answers
192 views

Is there a way to revert to the built-in function after overwritting it using Unprotect

When using Unprotect, we can overwrite a functions definition: Unprotect[Sqrt] Sqrt[x_]="blahblah" Protect[Sqrt] Once this is done, can we revert to the built-in ...
8
votes
1answer
126 views

$InputFileName backwards compatibility

What would be a good replacement for $InputFileName (which has been added recently to Mathematica 8) to achieve backwards compatibility with let's say M6 and M7? I ...
6
votes
1answer
156 views

Could a package be composed of references?

Could a package be composed of references (e.g. usage messages)? Do the code for an induvidual function implemented in a package has to be physically in that package file where it is referenced (i.e. ...
5
votes
1answer
420 views

How to make a filled Ellipsoid?

I want to make a filled Ellipsoid, but it seems Filling options doesn't work in Graphics ...
4
votes
2answers
278 views

Coordinate free differential forms package

I am looking for a package in Mathematica which can handle differential forms in a coordinate free manner. I am aware of several packages which do differential forms, but it seems that for all of them ...
0
votes
1answer
152 views

How can a package use a variable of a notebook?

I have defined a function g in a package. It is: g[x_]:=x/.t->3 Now I work in notebook with the command: ...
0
votes
1answer
134 views

Images in package Not visible

I want to make a package where some variables are initialized to images. but when i save the package, all images are in the form of ImageData that are very long. ...