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384178
bio website halirutan.de
location Leipzig, Germany
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visits member for 2 years, 3 months
seen 33 mins 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


16h
comment Select cases from a list
@holistic Yes, this is easily possible. Please see my edit in the answer.
16h
revised Select cases from a list
added 594 characters in body
20h
answered Select cases from a list
1d
reviewed Approve suggested edit on Variable number of nested variable-range sums
1d
comment Measuring curve length on a binarized image
Unfortunately, the number of pixel is not comparable to the length of the curve. When you really have to measure something and you cannot be sure whether your measure is up to sqrt[2] off the correct length, then you shouldn't use it. The number of pixel is equal to the area of an object.
2d
revised How can I include a popup menu in my wizard's content?
added 148 characters in body
2d
reviewed Reject suggested edit on Deleting all characters in a string that do not belong to a small set of elements
2d
reviewed Reject suggested edit on Deleting all characters in a string that do not belong to a small set of elements
2d
answered Measuring curve length on a binarized image
2d
comment ImageCapture on Windows 8.1
At least you get some effect. On my system Mathematica is telling me straight away "ImageCapture::notsupported: Image acquisition is not supported on Unix". I guess your best chance is to contact the support of Wolfram.
2d
revised Different colors for nodes in tree plot
added 657 characters in body
2d
answered Different colors for nodes in tree plot
Apr
17
comment Bizarre behavior of With, Compile and Break
+1 This issue is as awful as the type annotation with something like i=Most[{0}] inside Compile. Sometimes it would be better to cry difficulties out loud and document them instead of being silent and let users run onto ground.
Apr
17
comment Bizarre behavior of With, Compile and Break
I guess this is even shorter but is the same basic problem of type inference.
Apr
15
comment Need to create a function to generate all permutations of Range[$n$]
@rasher Ah, sorry. I'm very bad with insider jokes when they are in a different language. You would have to explain this in detail to make me understand. I guess this is not worth the effort :-)
Apr
15
comment Need to create a function to generate all permutations of Range[$n$]
@rasher I'm not concerned about how quick you can create the list of permutations, but what he will actually do with it. If his algorithm working on each permutation is only a tiny bit non-trivial, the overall run-time will climb ridiculously fast.
Apr
15
awarded  functions
Apr
15
revised Need to create a function to generate all permutations of Range[$n$]
added 161 characters in body
Apr
15
answered Need to create a function to generate all permutations of Range[$n$]
Apr
15
answered How to return escaped characters from MathLink?