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6h
comment How to find the same number in sublists of list
What if you use exact numbers (e.g. 1/10) instead of inexact ones (e.g. 0.1)?
6h
comment What does Segmentation fault (core dumped) actually mean?
"MMA gives me an errors", as you said. Messages should have appeared; what were they?
6h
comment What does Segmentation fault (core dumped) actually mean?
…and did you pay attention to what the errors said right before you did this? One does not disable safety features so easily unless one has a full understanding of what can go wrong, and how it can go wrong.
6h
comment What does Segmentation fault (core dumped) actually mean?
Why, exactly, did you do $RecursionLimit = Infinity? Were you sure your recursions would terminate when you did this?
7h
comment Simplifying Expressions for FindMinimum
It might be profitable here to use the Weierstrass substitution, so that you end up with the optimization of an algebraic function, which can be less expensive than maintaining the trigonometric formulation.
13h
comment Reverse of Apply on built-in functions
You can't delete, yes, but you can upvote and/or accept the answer you now have. :)
13h
comment How to get vertices of a polytope given by equalities and inequalities?
Another related thread.
14h
comment Suppress Print[ ]s?
Ah, so that is the modern approach… :)
14h
revised Reverse of Apply on built-in functions
edited tags
14h
comment Reverse of Apply on built-in functions
List @@ (* expression *) doesn't work for you?
14h
comment Suppress Print[ ]s?
There might be a cleaner/more canonical way, but it's not coming to me at the moment… :)
14h
comment Suppress Print[ ]s?
Do you still want the printed messages to be shunted somewhere else, or are you fine with disposing of them altogether? If it's the second, one hack-ish way would be a construction like Block[{Print = If[$verbose, Print, Identity]}, (* stuff *)].
16h
comment Replacing the Slot in an expression
The more traditional way to use a Slot object is something like (#^3 - # + 1) &[y] or #1^3 - 3#2 &[p, q]; so, extract the first component of your Root[] object and then apply it to an argument.
16h
comment Replacing the Slot in an expression
In any case: have a look at MinimalPolynomial[].
16h
comment Replacing the Slot in an expression
That's… not really how we think of slots; the indexing merely refers to the corresponding argument. So, #3 is a short way to refer to the third argument of a pure function. I don't think anyone here will fault you for using #1.
16h
comment Replacing the Slot in an expression
The #3 tells me that you do not have a simple Root[] object, but a "triangular" one obtained from not finishing the Gröbner basis reduction in full. Why not share the entire thing? Alternatively, you might first want to do a RootReduce[] to turn it into a simple Root[] object where all the slots are of the form #1 and the polynomial inside is really the minimal polynomial corresponding to the root.
17h
revised “ReliefMap” and “ContourMap” unable to download error
edited tags
17h
comment Solve an inequality involving a sum with a parameter
There isn't a closed form (no explicit way to express $n$ wholly in terms pf $p$), as I have previously said.
17h
revised Evaluating documentation example crashes the kernel
edited tags
18h
comment Options for a function I define that can be passed to functions I call in the definition
"should not" is a bit stronger than what I wanted to say; my only point was that this style looks to be difficult to maintain and can be easily broken during modification. The package is the classical way of having a few public functions that use private subroutines.