Linked Questions

13
votes
2answers
522 views

How to find a specific error message?

Is there a way to find an existing error message in the System` context, that is used for a certain case? I want to include a message in a custom function that ...
28
votes
1answer
3k views

How does Return work?

It is not completely clear to me how Return[] works. The documentation says: Return[expr] returns the value expr from a ...
119
votes
3answers
25k views

Is there an open source implementation of Mathematica-the-language?

I've seen questions before such as "What is the best open-source equivalent for Mathematica?", but that specific question (and that line of inquiry in general) cares more about the computer algebra ...
165
votes
19answers
12k views

What are some useful, undocumented $ \textit{Mathematica} $ functions?

There have already been some questions about some undocumented functionality in Mathematica. Such as (please add to these lists!) How can one find undocumented options or option values in Mathematica?...
88
votes
4answers
7k views

What are the recommended settings for git when using with Mathematica projects?

Background I'm relatively new to git — currently overseeing an offshore .NET-based development project on GitHub within a private business account, but little experience beyond that. I'd like to set ...
217
votes
8answers
12k views

What are the use cases for different scoping constructs?

Mathematica includes three functions that I know of which can be used to effectively (if not actually) define a variable and give it a value within a local scope: ...
64
votes
10answers
12k views

How do you convert a string containing a number in C scientific notation to a Mathematica number?

Suppose I have a string containing the C-representation of a floating point number; for example s = "1.23e-5" and I want to convert this to a Mathematica number. ...
33
votes
2answers
2k views

Going full functional (Haskell style)

I'm trying to define some notation so that Mathematica code would be more functional, similar to Haskell (just for fun): currying, lambdas, infix operator to function conversion, etc.. And I have some ...
5
votes
3answers
142 views

Pure functions applied to a two dimensional list

Lets say I have a two dimensional list: list = {{a, b, c}, {aa, bb, cc}, {x, y, z}, {xx, yy, zz}}; and two pure functions: ...
80
votes
1answer
2k views

Incompatible Changes since Mathematica Version 7?

There is documentation of the incompatible changes made to Mathematica with each major release: Incompatible Changes since Mathematica Version 1 Unfortunately that documentation simply stopped ...
1
vote
3answers
31 views

Grouping expressions by associative equivalence for a single operation

I would like to group expressions under associative equivalence, but only for a specific operation used in the expression (not for other operations). Say we have two binary operations A and B ...
5
votes
2answers
190 views

How does MakeBoxes handle an n-ary operator?

I want to format results from Reduce using the $\cup$ symbol instead of the $\lor$ symbol. For example, ...
15
votes
3answers
8k views

How to request financial data from Yahoo's YQL and Quandl?

How can I download historical data from Yahoo ? Although Mathematica's FinancialData function uses Yahoo it could be useful to have more control on how to retrieve data from Yahoo's YQL. Edit ...
20
votes
3answers
3k views

Higher order SVD

Does anyone know how to do a higher order SVD in Mathematica ? A good reference seems to be here http://www.sandia.gov/~tgkolda/pubs/pubfiles/SAND2007-6702.pdf but I don't understand their formalism ...
13
votes
4answers
582 views

Neural network illustrations

(Since this post was met with a certain reluctance to be given answers, a version of it is also posted in Community.) Please share neural networks diagrams you have made in Mathematica / WL. Here is ...

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