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bio website nl.linkedin.com/in/scdevries
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visits member for 2 years, 3 months
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project euler


1h
comment Manipulate executes twice
And an earlier one on stackoverflow: stackoverflow.com/questions/7283109/…
1h
comment Manipulate executes twice
Possible duplicates: mathematica.stackexchange.com/questions/31798/… and mathematica.stackexchange.com/questions/8373/…
1d
comment MathLM: how do I get it?
What do you mean by Mathematica server? There is no product by that name AFAIK.
1d
comment MathLM: how do I get it?
You also have copies of Mathematica itself installed on those machines or only the lightweight grid application? BTW as far as I know, MathLM is a different product, and also different from gridMathematica. It looks like you're confusing things.
1d
comment integration of delay differential equation
I don't see a delay differential equation in your input.
2d
comment region plot in a 2-simplex
It did work, even with the error... +1 anyway
2d
comment Why does Arrow not work well with Scaled coordinates in 3D?
Since we seem to have agreement that this is not the expected behaviour I added the bugs tag.
2d
comment region plot in a 2-simplex
Would you care to elaborate on the rather uncommon syntax of your MapAt call?
2d
comment Export Messing Up Alignment of Bar Chart
I can't reproduce it this way ImportString[ExportString[BarChart[Range[10]/6, ChartLabels -> Range[10], TicksStyle -> {Directive[0.1, Opacity[0], FontOpacity -> 1], Directive[12, Opacity[1], FontOpacity -> 1]}, BarSpacing -> Large, PlotRange -> {0, 2}, ImagePadding -> 10], "PDF"], "PDF"][[1]]
2d
comment Automatic method for NDSolve
See also: mathematica.stackexchange.com/questions/26072/… and mathematica.stackexchange.com/questions/3151/…, and mathematica.stackexchange.com/questions/145/…
2d
comment How to generate all symmetric positive semidefinite 0,1 matrices of a given order
The number of those matrices of size n x n increases rather steep with n. It's more than the sequence given by Sloane's A003024 which goes like 1, 1, 3, 25, 543, 29281, 3781503, 1138779265, 783702329343, 1213442454842881, 4175098976430598143, 31603459396418917607425, 521939651343829405020504063, 18676600744432035186664816926721. I hope you're not looking for more than an 8 x 8 matrix.
Apr
17
comment How to generate all symmetric positive semidefinite 0,1 matrices of a given order
Anything else that you need?
Apr
17
comment HighlightGraph and Hyperlink
I'm prepared to call this a bug. BTW It is an interesting exercise to open up the original graph output and Öskå's version (the evaluated graph) using ctrl-shift-E and look for the differences.
Apr
17
comment What string pattern will match $n$ contiguous characters drawn from a given alphabet?
Not everyone is aware of Repeated. Just leave it so.
Apr
17
comment What string pattern will match $n$ contiguous characters drawn from a given alphabet?
I don't think Alternatives is necessary here. A list of patterns is already interpreted as alternatives. See under Details at the StringExpression page.
Apr
17
comment draw graphics in cycle
Keywords start with an uppercase letter. Functions use square brackets, not round ones.
Apr
16
comment How to implement FittedModel like objects
Possible duplicate of mathematica.stackexchange.com/q/2590/57
Apr
16
comment How to save all data in all variables in context different than “global”?
If you are going to use your definitions in a different notebook, it may use the Global context, or its own, depending on your settings. This may clash with the context saved in the .mx file. In that case, placing the context on the context path helps.
Apr
15
comment How to save all data in all variables in context different than “global”?
BTW If you read the file back using Get, it'll probably good to place the old context back on the context path first. That would prevent you from getting messages on shadowing problems.
Apr
15
comment How to save all data in all variables in context different than “global”?
Context[] should return a single context. Are you sure you didn't type Contexts[]?