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visits member for 1 year, 9 months
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I guess I like meta programming


Jul
22
comment Plotting vector field
.. please realise that close votes are taken into account in determining the quality of your posts by the system, but again closing here is not a signal of bad quality. So as long as you don't receive too many downvotes (and hopefully some upvotes), it's all good. You cannot be automatically banned. By the way I think another good tip to get started is to try out small snippets and see if they behave like you expect them to (again the point of interactivity).
Jul
22
comment Plotting vector field
Hello, welcome to mma.se. Two of Mathematica's greatest features are the documentation, that you can access using F1, and Mathematica's interactivity. If you type any of the functions in your code into the help browser, you will get nice examples of the syntax of these functions. Of course points of Picket's answer are also something to remember. If this question becomes closed, that does not mean people don't appreciate the question. Downvotes do play that role here, and I see you received one, but I hope you don't take it too hard. If you happen to get a warning about low quality posts..
Jul
21
awarded  list-manipulation
Jul
20
comment DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
@TaliesinBeynon you are welcome, I enjoy the interaction. About reporting, so far I have just mailed support@wolfram.com and I have always received nice replies. I am hoping send the bug report tomorrow, I want to make sure I don't complain about undocumented behaviour. I will make sure to ask them to CC you.
Jul
20
comment Incompatibility of Row and TeXForm
So have you reported it again Mr.W?
Jul
20
comment DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
@TaliesinBeynon thank you posting an answer and for reporting. I had not reported anything yet. If you feel I should report the other leaks (or if my answer can be improved), please let me know.
Jul
20
comment DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
@Mr.Wizard that is an effective workaround, but I guess the stripping of Unevaluated in this case is kind of odd.
Jul
19
revised DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
Misinterpreted CountsBy before, now fixed
Jul
19
revised DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
Mainly summary
Jul
19
comment DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
@Rojo I'm not sure, I don't like the output of this: GroupBy[Unevaluated@{Print@"a";2+2,4,5},Hold], which is not the same as the output without Unevaluated and which is also not the same as what we would expect if we had assumed Unevaluated would work (three groups).
Jul
19
comment DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
@Rojo thanks for the edit :). (*temporary message*)
Jul
19
comment DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
@Rojo hmm maybe I am spoiled, I have been using (regular) DeleteDuplicates with other heads a lot. Then maybe the critique should be that it doesn't work with Unevaluated and that it applies a rule without printing a message in a case where output is not sensible.
Jul
19
revised DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
Changed conclusion about converting between association and list
Jul
19
revised DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
Minor
Jul
19
comment DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
@Mr.Wizard thank you :), I'm glad to help :).
Jul
19
revised DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
KeySortBy
Jul
19
revised DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
KeySortBy
Jul
19
awarded  Nice Answer
Jul
19
revised DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
KeySortBy
Jul
19
revised DeleteDuplicatesBy is not performing as I'd hoped. Am I missing something?
Not so harsh