4.17.1 Top new questions this week

4.17.1.1 Fast spherical polygon

https://mathematica.stackexchange.com/questions/144167/fast-spherical-polygon

 
Cross posted on Wolfram Community 
 
Question 
 
Given a list of points on a sphere and the sphere's radius, I'd like to plot a spherical polygon with those points as vertices. 
 
And this needs to be fast,  ...
 

- asked by Kuba (20 votes), answered by halirutan (7 votes)

4.17.1.2 How to uncompress strings safely (without any evaluation)?

https://mathematica.stackexchange.com/questions/144171/how-to-uncompress-strings-safely-without-any-evaluation

 
Compressed strings are often used to exchange Mathematica expressions on the Internet. 
It is, however, not easy to see what such expression will do after decompression. 
Resulting code can perform  ...
 

- asked by Shadowray (15 votes), answered by Itai Seggev (11 votes)

4.17.1.3 Sharing data via the cloud

https://mathematica.stackexchange.com/questions/144130/sharing-data-via-the-cloud

 
I've got some stuff that I want to be able distribute to my totally real friends, but I don't want to have to email them every time I change something. 
 
How can I set up sharing via the cloud?
 

- asked by MB1965 (13 votes), answered by MB1965 (13 votes)

4.17.1.4 C++ interface to large project

https://mathematica.stackexchange.com/questions/144047/c-interface-to-large-project

 
We are developing a quite large mathematical software in C++ and would like to have a Mathematica interface. We have our own C++ library and our idea would be, to write a Mathematica wrapper class and  ...
 

- asked by Richard (12 votes), answered by Szabolcs (12 votes)

4.17.1.5 Why doesn't FullSimplify return -x working on Abs[x] and x<0?

https://mathematica.stackexchange.com/questions/144310/why-doesnt-fullsimplify-return-x-working-on-absx-and-x0

 
I am using Mathematica 11.1, and I stumbled upon this strange response using the Abs function. 
 
FullSimplify[Abs[x],x<0] 
(* Abs[x] *) 
 
 
while, for example 
 
FullSimplify[Abs[x],x>0] 
(* x *) 
 
 
as  ...
 

- asked by mickep (10 votes), answered by Simon Woods (13 votes)

4.17.1.6 ParallelMap vs Map performance comparsion

https://mathematica.stackexchange.com/questions/144056/parallelmap-vs-map-performance-comparsion

 
The ParallelMap claims doing map faster than the normal Map, and I checked the demo does as the document describing 
 
 
 
but, I try my testing, it seems not exactly while ParallelMap excuting with 8  ...
 

- asked by Jerry (10 votes), answered by Szabolcs (10 votes)

4.17.1.7 How to plot a matrix with 3D style

https://mathematica.stackexchange.com/questions/144443/how-to-plot-a-matrix-with-3d-style

 
I have a list like 
 
SeedRandom[1] 
MatrixForm[list = RandomInteger[5, {5, 5}]] 
 
 
 
 
We can plot it with MatrixPlot directly with 2D style 
 
MatrixPlot[list] 
 
 
 
 
I hope to plot it with 3D style.This is  ...
 

- asked by yode (9 votes), answered by kglr (2 votes)