All Questions
Tagged with undocumented numerics
8
questions
2
votes
1
answer
257
views
Experimental`CreateNumericalFunction
When working with a Compile function I can specify if a given argument is a matrix, a vector or a scalar. For instance, something like:
...
- 535
6
votes
1
answer
166
views
Is it possible to make listable Experimental`NumericalFunction?
I have been playing a bit with the undocumented function
Experimental`CreateNumericalFunction
and I wanted to know if somebody found a way to make generated ...
- 535
11
votes
0
answers
184
views
How to modify NDSolve`StateData without crashing the kernel?
Probably a hard question, but it's better to cry out loud.
Reminded by Chris K, I noticed my fix function has been broken since v11.3. After some checking, I ...
- 67.1k
16
votes
1
answer
653
views
What happened to SequenceLimit?
In older versions of Mathematica, there was a function called SequenceLimit that allowed taking the limit of a numerical sequence. It is useful for speeding up the ...
- 1,955
14
votes
1
answer
304
views
How is the Hessian computed using ``Experimental`NumericalFunction``?
Here and here it was explained how to use Experimental`NumericalFunction to compute the Hessian of a numerical function. I would like to know how this undocumented ...
- 1,982
26
votes
4
answers
727
views
How does Internal`CompareNumeric work?
In this answer,
Oleksandr R. mentioned an undocumented function Internal`CompareNumeric and briefly explained its usage as follows:
...
- 67.1k
10
votes
1
answer
317
views
Can Someone Please Explain Internal`$SameQTolerance?
If I input
Internal`$SameQTolerance
(* output = 0.30103 *)
which is the approximation of Log[10,2], or ...
- 505
47
votes
2
answers
2k
views
How to work with Experimental`NumericalFunction?
This question is intimately connected with previous one: "How to create internally optimized expression for computing with high WorkingPrecision?"
Oleksandr R. correctly states in the comment:
A ...
- 62k