29,861 reputation
864157
bio website nl.linkedin.com/in/scdevries
location Utrecht, Netherlands
age
visits member for 2 years, 3 months
seen 8 hours ago

project euler


9h
comment MathLM: how do I get it?
What do you mean by Mathematica server? There is no product by that name AFAIK.
14h
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.
14h
reviewed Close Solving Delay differential equations in mathematica
14h
reviewed Close integration of delay differential equation
14h
comment integration of delay differential equation
I don't see a delay differential equation in your input.
14h
reviewed Close Deformation of pictures
1d
reviewed Approve suggested edit on Calculating the Lyapunov Exponent/Spectrum for the Duffing Oscillator
1d
comment region plot in a 2-simplex
It did work, even with the error... +1 anyway
1d
revised Why does Arrow not work well with Scaled coordinates in 3D?
edited tags
1d
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.
1d
comment region plot in a 2-simplex
Would you care to elaborate on the rather uncommon syntax of your MapAt call?
1d
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]]
1d
comment Automatic method for NDSolve
See also: mathematica.stackexchange.com/questions/26072/… and mathematica.stackexchange.com/questions/3151/…, and mathematica.stackexchange.com/questions/145/…
1d
revised Automatic method for NDSolve
deleted 80 characters in body
1d
reviewed Close How to get integer/rational and real eigenvectors to be the same?
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.
2d
reviewed Close region plot in a 2-simplex
2d
comment How to generate all symmetric positive semidefinite 0,1 matrices of a given order
Anything else that you need?
2d
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.
2d
reviewed Reviewed complicated Numerical Integration, FEM application