================================== Top new questions this week: ==================================
[Bug with MapAt, Span, and Association?] http://mathematica.stackexchange.com/questions/116561/bug-with-mapat-span-and-association
Bug introduced in 10.0 and persisting through 10.4.1 or later
Related to Mapping (Query) a function at multiple locations in nested data via All, Span, it seems to me that the behavior of MapAt ...
- asked by Mr.Wizard (19 votes)
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[Joining points into 3D surface] http://mathematica.stackexchange.com/questions/117736/joining-points-into-3d-surface
This seems like a simple problem, but I can’t find any questions like it here so I’m making a new one. Apologies if I missed one.
I have a list of points contained in a file which can be visualized ...
- asked by Crepo (12 votes), answered by george2079 (6 votes)
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[How to check the validity of an option value] http://mathematica.stackexchange.com/questions/116623/how-to-check-the-validity-of-an-option-value
I have a user-defined function, func, which takes the following form:
func[arg1, arg2, options] Here is the actual code Options[func] = {opt1 -> Automatic, opt2 -> False, opt3 -> {1, ...
- asked by Shutao TANG (12 votes), answered by Leonid Shifrin (10 votes)
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[Why does the GeoGraphics Frame show different Latitude than GeoPosition?] http://mathematica.stackexchange.com/questions/116507/why-does-the-geographics-frame-show-different-latitude-than-geoposition
The map looks right, but the Latitude in the Frame looks wrong.
Am I making a mistake or is this a bug?
- asked by vonkohorn (12 votes), answered by jose (8 votes)
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[Rotate Geographic map] http://mathematica.stackexchange.com/questions/117744/rotate-geographic-map
I want the map to be rotated by -45 Degree. I want to coast to be horizontal (perfect -45 degree). I already have:
loc = GeoPosition[{52.57243, 5.51780}]; loc1 = GeoPosition[{52.57718, 5.52193}]; ...
- asked by Dennis (11 votes)
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[How to learn the LibraryLink technique for the newcomer?] http://mathematica.stackexchange.com/questions/116451/how-to-learn-the-librarylink-technique-for-the-newcomer
Description
For the built-in programming language(or called Wolfram Language) of Wolfram Mathematica, I think it is much easier and simpler to learn than other computer language(such as C/C++ or ...
- asked by Shutao TANG (11 votes), answered by Szabolcs (12 votes)
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[Nested association values validation. POJsO handling] http://mathematica.stackexchange.com/questions/116571/nested-association-values-validation-pojso-handling
Sometimes it is convenient to work in your package/app with "objects" like:
childObject = <| "id" -> 284, "text" -> "texttext", "property" -> <| "type" -> "String", ...
- asked by Kuba (9 votes), answered by Leonid Shifrin (5 votes)
================================== Greatest hits from previous weeks: ==================================
[Where can I find examples of good Mathematica programming practice?] http://mathematica.stackexchange.com/questions/18/where-can-i-find-examples-of-good-mathematica-programming-practice
I consider myself a pretty good Mathematica programmer, but I’m always looking out for ways to either improve my way of doing things in Mathematica, or to see if there’s something nifty that I haven’t ...
- asked by J. M. (417 votes), answered by faysou (376 votes)
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[How to create word clouds?] http://mathematica.stackexchange.com/questions/2334/how-to-create-word-clouds
Word clouds are rather useless fancy and visually appealing plots, where words are plotted with different sizes according to their frequency in a corpus. Many applications exist out there (Wordle, ...
- asked by Istvan Zachar (126 votes), answered by Heike (105 votes)
================================== Can you answer these? ==================================
[What is the difference between getting a boundary mesh from ToBoundaryMesh vs doing it with ToElementMesh?] http://mathematica.stackexchange.com/questions/116559/what-is-the-difference-between-getting-a-boundary-mesh-from-toboundarymesh-vs-do
I am trying to figure out how to define and use meshes for FEM and NDSolve. I’ve figured out that if I want more resolution near my boundaries, I can use ToBoundaryMesh to first create the boundary ...
- asked by YungHummmma (4 votes)
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[Solving Differential Equation for derivative] http://mathematica.stackexchange.com/questions/117689/solving-differential-equation-for-derivative
I am new to mathematica and am trying to solve a differential equation. Actually, I am not entirely sure if the system can be called differential equation.
I am interested in finding out the second ...
- asked by JKJ (1 vote)
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[ShortestTour Problem with Constraints] http://mathematica.stackexchange.com/questions/116505/shortesttour-problem-with-constraints
I can solve a travelling salesman problem with FindShortestTour[], but couldn’t find any function to solve a shorest tour problem with additional constraints like cost, fuel capacity etc. How cam I ...
- asked by user40405 (3 votes)