9.23.1 Top new questions this week

9.23.1.1 Gravitation simulation and interaction of N (1000) massive objects
9.23.1.2 How to prove an identity involving a hypergeometric function?
9.23.1.3 Why do error messages show up when mouse hovers over ListLinePlot in V 13.3?
9.23.1.4 Split list into ascending sublists
9.23.1.5 In Mathematica 13.3 are chat notebooks enabled by default?
9.23.1.6 Why do many integrals fail to verify in V 13.3? Is the method of verification wrong?
9.23.1.7 Can the type 3 SS be obtained using the ANOVA function or an adaptation that is readily available in Mathematica
9.23.1.1 Gravitation simulation and interaction of N (1000) massive objects

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=287122

Is there an implementaion of the Barnes-Hut algorithm running with Mathematica? 
Thanks a lot 
[performance-tuning] [simulation]
 
asked by Rémy Galli https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74534 Score of 12
answered by Henrik Schumacher https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=38178 Score of 18
9.23.1.2 How to prove an identity involving a hypergeometric function?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=287134

How to prove with the help of Mathematica the following statement? 
$$ {}_2F_1\left(\frac{2}{3},\frac{2}{3};\frac{5}{3};-1\right)=\frac{\pi -3 \sqrt{3} \log \left(\sqrt[3]{2}-1\right)-6 \tan^{-1}\left(\... 
[calculus-and-analysis] [simplifying-expressions] [special-functions]
 
asked by yarchik https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9469 Score of 6
answered by Artes https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=184 Score of 3
9.23.1.3 Why do error messages show up when mouse hovers over ListLinePlot in V 13.3?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=287215

New bug in V 13.3 
Wolfram support: A support case was created with the ID [CASE:5057959] 
 
Why in V 13.3 on windows 10, when moving the mouse on top of a plot, it says there is an error? In V 13.2.1 ... 
[plotting] [bugs] [front-end] [version-13.3]
 
asked by Nasser https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=70 Score of 6
answered by cvgmt https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72111 Score of 4
9.23.1.4 Split list into ascending sublists

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=287149

I would like to split a list into non-overlapping, ascending (more precisely, non-descending with ) sublists. The function would be close to  LongestOrderedSequence ,... 
[list-manipulation] [sequence]
 
asked by SnzFor16Min https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=69875 Score of 6
answered by user1066 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=106 Score of 10
9.23.1.5 In Mathematica 13.3 are chat notebooks enabled by default?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=287146

I read that Mathematica 13.3 supports chat notebooks. I have installed Mathematica 13.3 but do not see a way to create chat-enabled notebooks. Do I need to enable it? If it is enabled by default, on ... 
[notebooks] [chatai]
 
asked by vasili111 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=11639 Score of 6
answered by EstabanW https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=34212 Score of 7
9.23.1.6 Why do many integrals fail to verify in V 13.3? Is the method of verification wrong?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=287315

Many integrals fail to verify their results in V 13.3 compared to V 13.2.1. 
So I am asking for help to determine why. It is possible that my function which verifies the antiderivative is not doing a ... 
[calculus-and-analysis] [version-13.3]
 
asked by Nasser https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=70 Score of 5
answered by Daniel Huber https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=46318 Score of 3
9.23.1.7 Can the type 3 SS be obtained using the ANOVA function or an adaptation that is readily available in Mathematica

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=287286

The default output for the ANOVA function is that of a type 1 Sum of Squares (SS) table. This is sufficient for a one-way ANOVA, however, when running an n-way ANOVA (with n greater than 1) and ... 
[probability-or-statistics]
 
asked by Joel https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=93451 Score of 5
answered by JimB https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=19758 Score of 4