11.38.3 Can you answer these questions?

11.38.3.1 Inconsistent behavior of Quantile on zero-weighted EmpiricalDistribution

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=316844

Issue:  Quantile  gives inconsistent and incorrect results when applied to an  EmpiricalDistribution  where some values in the ... 
[probability-or-statistics] [probability-distributions]
 

asked by Joshua Schrier https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=63709 Score of 1

11.38.3.2 Raytracing in Black Hole Background

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=316857

I have this code working well for Q = 0. But I need to plot the image for Q > 0, any help is very appreciated. 
... 
[plotting]
                                                                                  

                                                                                  
 

asked by David Senjaya https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=99616 Score of 1

11.38.3.3 Parallelization on a cluster

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=316858

I have the unique chance to run several tasks on a cluster with many cores and RAM. The problem is that it seems that my Mathematica code is not using all the power of 64 cores with 1024gb RAM that I ... 
[parallelization] [high-performance-clusters]
 

asked by paperlemon2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=111967 Score of 1