6.10 Tuesday, October 27, 2015

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Top new questions this week: 
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[Recursively appending elements to a list] http://mathematica.stackexchange.com/questions/97684/recursively-appending-elements-to-a-list

In wanting to demonstrate the power of Mathematica, I wanted to show my 11-year-old son how we could validate that his sequences homework was correct. We could generate the next value in sequence in a ...

- asked by AnthonyMiller (15 votes), answered by J. M. (19 votes)

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[What is "MemoryMonitor"?] http://mathematica.stackexchange.com/questions/97810/what-is-memorymonitor

Evaluating one of the following inputs

CurrentValue[EvaluationNotebook[], WindowElements] 
 
CurrentValue[$FrontEndSession, WindowElements] 
 
CurrentValue[$FrontEnd, WindowElements]

...

- asked by Karsten 7. (12 votes), answered by m_goldberg (10 votes)

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[Pop-up documentation for "The new function of the day"] http://mathematica.stackexchange.com/questions/97552/pop-up-documentation-for-the-new-function-of-the-day

The Wolfram Language has more than 5000 built-in functions and constants.

functionslist = Flatten[ 
   Names[#] & /@ Flatten[ 
     {# <> "*", "$" <> # <> "*"} & 
      /@  ...

- asked by rhermans (12 votes), answered by J. M. (5 votes)

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[ListContourPlot has wrong colouring: workaround?] http://mathematica.stackexchange.com/questions/97596/listcontourplot-has-wrong-colouring-workaround

ListContourPlot uses the wrong colouring here:

res = Import["https://dl.dropboxusercontent.com/u/38623/res.wdx", "WDX"]; 
 
ListContourPlot[res, Contours -> Range[0.66, 0.9, 0.02], ColorFunction  ...

- asked by Szabolcs (12 votes), answered by Jason B (9 votes)

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[How do you handle upgrade frequency now that minor releases come so quickly?] http://mathematica.stackexchange.com/questions/97493/how-do-you-handle-upgrade-frequency-now-that-minor-releases-come-so-quickly

Does anyone understand the Mathematica upgrade treadmill these days? With the minor releases (10.2, 10.3) coming out fairly quickly and the upgrade price associated with each, I have no idea what my ...

- asked by sblom (12 votes)

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[More efficient method to compute moments of the Johnson \(S_B\) distribution] http://mathematica.stackexchange.com/questions/97750/more-efficient-method-to-compute-moments-of-the-johnson-s-b-distribution

Here is a very specific feature request. I need

Mean[JohnsonDistribution["SB", \[Gamma], \[Delta], 0, 1]] 
 
When I issue e.g. 
 
Table[N[Mean[JohnsonDistribution["SB", \[Gamma], \[Delta], 0, 1]]], 
  {\[Gamma], -10, 10}, {\[Delta], 1, 10}] 
 
- asked by   (11 votes), answered by J. M. (15 votes)

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[Path Names Longer Then 256 on Windows] http://mathematica.stackexchange.com/questions/97736/path-names-longer-then-256-on-windows

Is there a way to work with pathnames that are longer then the typical 256 in Mathematica?

For example run the following in Cygwin

echo 1 >  ...

- asked by William (11 votes), answered by WReach (10 votes)

================================== Greatest hits from previous weeks: ==================================

[Mathematica Minecraft] http://mathematica.stackexchange.com/questions/19669/mathematica-minecraft

Some time ago I asked myself: with all these great graphics and interactive capabilities of Mathematica, what kinds of 3D games can be implemented in it? And the answer which came to mind is ...

- asked by faleichik (131 votes), answered by faleichik (176 votes)

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[3D surface that looks like a virus] http://mathematica.stackexchange.com/questions/74193/3d-surface-that-looks-like-a-virus

I have been recently using Mathematica for composing animations that are part of the supplementary information of my papers.

I am currently trying to build an animation that involves a viral ...

- asked by user2098 (16 votes), answered by Chris Degnen (18 votes)

================================== Can you answer these? ==================================

[How to model discontinuities in a NonlinearStateSpaceModel] http://mathematica.stackexchange.com/questions/97717/how-to-model-discontinuities-in-a-nonlinearstatespacemodel

I know that it is possible to model discontinuities like bouncing and other collisions by using WhenEvent with NDSolve.

However, I am using the tools for Non linear systems and I’d like to know if ...

- asked by RationalAsh (2 votes)

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[How to pass a custom method to a particular option?] http://mathematica.stackexchange.com/questions/97753/how-to-pass-a-custom-method-to-a-particular-option

In an answer to my question More efficient method to compute moments of the Johnson \(S_B\) distribution, J. M. has come up with a method to compute the moments of the Johnson \(S_B\) distribution, which ...

- asked by   (4 votes)

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[Scaling 1D ArrayPlot divide by zero error] http://mathematica.stackexchange.com/questions/97467/scaling-1d-arrayplot-divide-by-zero-error

I am trying to overlay an ArrayPlot onto a WaveletScalogram, using the helpful answer here; however, my ArrayPlot is one-dimensional.

My code:

Show[{ 
  WaveletScalogram[trainWaveData["A1 HbO"],  ...

- asked by Lylax (2 votes)