10.20.1 Top new questions this week

10.20.1.1 How to draw a number of circles inscribed in a square so that the sum of the radii of the circle is greatest?
10.20.1.2 Create sublists whose totals exceed a certain threshold and that are as short as possible
10.20.1.3 List[...] + Association[...], or Association[...] + List[...], when does the order matter?
10.20.1.4 How to find stationary points graphically?
10.20.1.5 Unable to plot $\exp(-a \sqrt 1+x^2 )$ for $a>700$
10.20.1.6 Composition of vectorvalued functions
10.20.1.7 GeoJSON Problems - UK Parliamentary Constituencies
10.20.1.1 How to draw a number of circles inscribed in a square so that the sum of the radii of the circle is greatest?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=304317

I have a square with length of side is $a$. How to draw a number of circles inscribed in a square so that the sum of the radii of the circle is greatest? In the below picture is six circles inscribed ... 
[computational-geometry] [maximum]
 
asked by minhthien_2016 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=5320 Score of 15
answered by cvgmt https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72111 Score of 16
10.20.1.2 Create sublists whose totals exceed a certain threshold and that are as short as possible

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=304351

 list = {2, 1, 8, 10, 1, 4, 4, 5, 3, 4, 4, 11, 12}; 
 
th = 10; 
 
It is easy to create sublists whose totals don't exceed  th : 
... 
[list-manipulation] [pattern-matching]
 
asked by eldo https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=14254 Score of 8
answered by ydd https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72953 Score of 6
10.20.1.3 List[...] + Association[...], or Association[...] + List[...], when does the order matter?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=304300

Values of a list can be added to an association's values like so, 
... 
[list-manipulation] [core-language] [associations] [operators]
 
asked by Carl Verdon https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=99394 Score of 8
answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 5
10.20.1.4 How to find stationary points graphically?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=304158

I have the following Mathematica code: 
... 
[plotting] [calculus-and-analysis] [graphics] [mathematical-optimization] [mesh]
 
asked by codebpr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=78049 Score of 7
answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 8
10.20.1.5 Unable to plot $\exp(-a \sqrt 1+x^2 )$ for $a>700$

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=304389

I am trying to plot the function bellow  f(x,a)  for  a = {700,750,1000,2000} 
... 
[plotting] [precision-and-accuracy]
 
asked by Gallagher https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=58233 Score of 6
answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 11
10.20.1.6 Composition of vectorvalued functions

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=304201

Suppose I have two functions $f,g:\mathbb{R}^2 \to \mathbb{R}^2$ and that I want to compute $g(f(x,y))$. As an example, let's take $f(x,y)=(x+y, x-y)$ and $g(x,y)=(y^2,x^2)$. Then, $g(f(1,2))=(1,9)$. 
... 
[functions] [syntax] [multivalued]
 
asked by user2978125 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=86285 Score of 6
answered by eldo https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=14254 Score of 7
10.20.1.7 GeoJSON Problems - UK Parliamentary Constituencies

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=304277

I want to plot the new parliamentary boundaries for the upcoming general election. 
This will use an NIHR API to grab the map location of the FID=3, the 3rd parliamentary constituency in alphabetical ... 
[geography] [geographics] [json-format]
 
asked by Tomi https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=36939 Score of 5