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4h
comment Why does TraditionalForm[Inactivate[x y]] show x * y ? instead of x y?
It's not clear to me if this is intended behaviour or not. Instead of asking here, I'd write to Wolfram support. They'll either tell you why, or will confirm it as a bug.
6h
asked Graph plotting: specify layers for layered drawing
1d
comment How to make equidistant or split ListPoint
@BeingHuman I know you have 3D, but that doesn't mean that the solutions from the linked question don't work with no or little modification. Please do try. If you have trouble with them, then ask.
1d
comment How to make equidistant or split ListPoint
@BeingHuman The question "Equidistant points on a polyline" also uses points. Have you looked at that question? It starts with p = RandomReal[{-1, 1}, {20, 2}];, which is a set of 2D points.
1d
comment Speeding Up Image Processing Functions
Parallelize has a somewhat misleading name. It won't magically speed up anything. Compile also supports only certain functions, and compilation likely won't help at all with these functions, it might even hurt performance a tiny bit. This is, of course, not an answer to your question about how to speed up the operation.
1d
comment How to make equidistant or split ListPoint
You can interpolate between the points (Interpolation) then use the linked answer to make the equidistant points.
1d
comment Mathematica 10 Graph issue
I shouldn't have said that it doesn't have a layout as the layout obviously gets computed by GraphEmbedding, what I meant is that the display of the graph looks the same as that of RandomGraph[{10, 20}, GraphLayout -> None].
1d
comment Mathematica 10 Graph issue
Here's a minimal example: g = RandomGraph[{10, 20}]; GraphEmbedding[g]; g.
1d
comment Mathematica 10 Graph issue
The graph doesn't have a layout. In this case it gets shown like a summary box. Why it doesn't have a layout I don't know. If you remove the ; after RandomGraph[...] so it gets a chance to be shown alone first, it'll work. This smells like a bug, can you please report it to support at wolfram.com?
1d
comment How to create a screen shot of a notebook
@ArielSepulveda What precisely is missing in this solution? What are you looking to include that isn't?
Jul
28
comment What is that Root[…] inside the answer represent?
Have you searched for Root in the documentation?
Jul
27
comment why head Association cannot be replaced by head List
@Algohi As Michael said, for various atomic objects there are usually some functions to extract data from them. For Complex this is Im and Re. You might notice that MatchQ[Complex[1, 2], Complex[_, _]] is True and it is possible to do Complex[1, 2] /. Complex[i_, j_] :> {i, j}. This often causes confusion. It is important to realize that this works just because this specific functionality happens to be implemented for Complex. It does not mean that Complex has a generally accessible internal structure, e.g. List @@ Complex[1, 2] doesn't work.
Jul
27
answered why head Association cannot be replaced by head List
Jul
27
comment Given f[1] … f[k], k = 1, 2, 3… how do one find the general function f[n]?
FindGeneratingFunction and FindSequenceFunction do this, but they probably won't work for such a general symbolic sequence.
Jul
27
revised Can NDSolve handle discountinuos data?
added 124 characters in body
Jul
27
comment Can NDSolve handle discountinuos data?
it's also possible to just make a numerical black box out of UnitBox, as in f[x_?NumericQ] := UnitBox[(x - 0.5) 0.5/0.2]. Then it works. But I'd like to understand why Mathematica thinks that it shouldn't attempt solving this equation when it knows that there are variables taking discrete values.
Jul
27
comment Can NDSolve handle discountinuos data?
This is relevant: reference.wolfram.com/language/ref/DiscreteVariables.html
Jul
27
answered Can NDSolve handle discountinuos data?
Jul
27
awarded  Popular Question
Jul
27
revised Providing a color function for ListPointPlot3D
added 44 characters in body