For questions regarding the underlying implementation of built-in functions.
26
votes
3answers
791 views
What is the most convenient way to read definitions of in-memory symbols when we don't have the source files?
Note: I put Simon's implementation on GitHub. Contributions welcome!
When trying to read the definition of already defined (package or built-in) symbols using ...
11
votes
1answer
661 views
How does Mathematica integrate?
Basically, this question can be considered to be an extenstion to my other question.
What I wanted to do was this integral as homework (it is indefinite BTW so no approximations using Simpson's Rule ...
21
votes
1answer
339 views
How are MemberQ and FreeQ so fast?
I would like to understand the implementation that allows MemberQ and FreeQ to be as fast as they are.
I noticed this thanks to ...
21
votes
0answers
383 views
What calendar is Mathematica using for dates in the distant past?
It appears that Mathematica treats all dates as proleptic Gregorian dates by default, a hypothesis that can be easily tested by using AbsoluteTime to compute the ...
16
votes
1answer
275 views
What does “suitable for symbolic manipulation” in the documentation mean?
This question is related to this other one I posted on Stack Overflow some time ago. There, in a beautiful answer, acl (with some unhumble editing done by me) showed that the derivative of ...
11
votes
1answer
142 views
How to implement FittedModel like objects
In the course of making some RLink wrappers I want to have some richer containers like Mathematica does with its FittedModel ...
8
votes
1answer
119 views
Algorithm used by IsomorphicGraphQ
I'd like to know which algorithm is used to test if two graphs are isomorphic?
5
votes
1answer
185 views
Can we know the background code associated with basic mathematica functions
I wanted to know how computers calculate basic functions like Sqrt so first I checked how humans do it I found that they use something called "Newton's method" that ...
