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bio website halirutan.de
location Leipzig, Germany
age
visits member for 3 years
seen 15 hours ago

Although I'm quite familiar with Mathematica, I always try to keep an open mind and don't use it as golden hammer. I'm particularly good at things that are fun, for instance


Dec
29
revised Picking items from a list
added 2670 characters in body
Dec
29
answered Picking items from a list
Dec
29
answered Default value behaves differently when used in Function and when used with Cases
Dec
26
revised Getting code from the Wolfram Demonstrations Projects
added 39 characters in body
Dec
26
comment Subroutine execution repetition
Of course this is OK.
Dec
26
answered Subroutine execution repetition
Dec
26
answered Trace two DateListPlots?
Dec
25
reviewed Close Generate nonoverlapping random circles
Dec
25
reviewed Close How to randomly create disks with randomized radii under given specific cover ratio?
Dec
25
comment Bug in plotting function using FindMinimum?
This is most certainly a bug. I can only emphasize what Olek mentioned at the end: A Throw inside a built-in function should never reach the user. This would be very bad style. Btw, I get the same output as you did on Linux 64 with Mathematica 10.0.2.
Dec
25
comment List Manipulation Via Conditionals
What about Table[If[Mod[l, 2] == 0, l, 0], {l, l1}] for arbitrary l1? Remember that you can simply iterate through l1 with this, when you don't need the index of the current element.
Dec
25
comment List Manipulation Via Conditionals
Why is your Piecewise so complicated? You only need one condition which is Mod[#,2]==0. If this is not satisfied, that you can use the default value. So either Piecewise[{{#, Mod[#, 2] == 0}}, 0] & or even shorter Piecewise[{{#, Mod[#, 2] == 0}}] & should be enough.
Dec
23
reviewed Close Dealing with implicit function
Dec
23
reviewed Leave Open Buying a new computer (specifically for Mathematica)
Dec
23
comment Localised variable shows up as Global
Chris, your edited question is quite different from your original one. Are you satisfied with the information you have the answers? I haven't voted to reopen because I'm a bit unsure whether it isn't still a duplicate.
Dec
22
answered Localised variable shows up as Global
Dec
22
comment Buying a new computer (specifically for Mathematica)
@Karsten7. After all it is only a benchmark. Usually I don't overclock my computer because I can very often improve performance with compiling, parallelization or reformulating of problems. With those improvements you often gain some magnitudes of speed and not only very small fractions.
Dec
22
comment Buying a new computer (specifically for Mathematica)
@Karsten7. This one here.
Dec
20
comment Headings, subheadings, text cells etc and Alt+n
@Hugh I just learned that this seemed to work in Windows in earlier Mathematica versions. In Linux, I this never worked. I wouldn't say it is a bug. It is just bad UI design.
Dec
20
comment Headings, subheadings, text cells etc and Alt+n
In Linux, this never worked, at least not that I can remember. So when I started typing something, then I cannot change the cell style without marking the cell bracket. I tried version 8.0.4 - 10.0.2 and neither does it work with Alt+1 nor with Alt+Shift+1 :-(