7.35.1 Top new questions this week

7.35.1.1 Efficient multidimensional optimization while constraining some coordinates

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=257062

I have a function  f[x]  with a high-dimensional vector input and a scalar output. I am looking to minimize this function while constraining some of the components of ... 
[performance-tuning] [numerics] [mathematical-optimization]
 

asked by Szabolcs https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=12 19 votes

answered by Henrik Schumacher https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=38178 22 votes

7.35.1.2 MorphologicalEulerNumber misbehaving in 3D?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=257017

Context 
I would like to compute the  MorphologicalEulerNumber  of 3D GaussianRandomField as a function of height above a given 
threshold. 
Attempt 
I proceed as follows:... 
[bugs] [computational-geometry] [topology] [morphologicalcomponents]
 

asked by chris https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1089 8 votes

answered by Henrik Schumacher https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=38178 3 votes

7.35.1.3 NDSolve misses nontrivial solution

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=257109

The initial value problem I would like to solve possesses an analytical solution 
... 
[differential-equations] [nonlinear]
 

asked by Ulrich Neumann https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53677 5 votes

7.35.1.4 How to make this Box Plot

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=257065

I want to mimic the following style (not necessarily the same data) 
 
So far, I got the following 
... 
[plotting] [probability-or-statistics] [data] [charts] [style]
 

asked by sam wolfe https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=64001 5 votes

answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 7 votes

7.35.1.5 How to make a dynamic plot of a holed circle using "Manipulate"

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=256929

I would like to make a dynamic circle with the inner radius ($R_a(t)$) moving to $R_b$ like the image below. I had difficulty using Manipulate and leaving the intersections colored as in the image. ... 
[plotting] [graphics] [manipulate] [geometry] [circle]
 

asked by Felipe https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=78020 5 votes

answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 11 votes

7.35.1.6 Problem while exporting PDF vs PNG

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=257039

I have the following  RegionPlot  (which code I don't present since it comes from a long expression): 
 
When I right click on it (within the notebook) and try to save ... 
[plotting] [export] [regions] [mesh] [pdf-format]
 

asked by sam wolfe https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=64001 5 votes

answered by Chip Hurst https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4346 6 votes

7.35.1.7 Writing a document-like Text

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=257161

Imagine I have the following code 
 Graphics[{LightBlue, Rectangle[], Black, Text["Hello", {.1, .9}]}] 
 
 
If I had more text to the ... 
[graphics] [style] [text] [writing]
 

asked by sam wolfe https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=64001 4 votes

answered by David G. Stork https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9735 7 votes