12.3.1 Top new questions this week

12.3.1.1 Stresses at interface within finite-element model. Can't integrate over surface to find total force

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318464

I have a structure with many joins.  I wish to find out which joins are taking the stress. To explore this I have been looking at a minimum working example with just one join. The objective is to find ... 
[differential-equations] [finite-element-method]
 

asked by Hugh https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=12558 Score of 5

answered by user21 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=18437 Score of 4

12.3.1.2 How to reproduce the Fourier-Mellin method

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318462

The Fourier-Mellin method described in this paper can detect rotation and scaling in images.  Just recently, I noticed that OpenCVLink's  SpatialOps`CVLogPolar  and <... 
[image-processing]
 

asked by yode https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=21532 Score of 5

12.3.1.3 How do not modify exponents in the interval (0,1)?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318441

Mathematica probably considers the expression  6*2^(3/4)*3^(1/8)  to be simpler than  2^(7/4)*3^(9/8) 
... 
[simplifying-expressions] [algebraic-manipulation]
 

asked by Vaclav Kotesovec https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=29655 Score of 5

answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 5

12.3.1.4 Invisible marker in Notebook, exported to PDF

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318466

I present worked-out problems to my students in class. I present from Notebooks, any of which  can have upwards of 100 exercises. As most students do not download their free, site license to ... 
[export] [pdf-format]
 

asked by Aharon Naiman https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=45626 Score of 4

answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 3

12.3.1.5 How do I define custom commutation relations for canonical simplification using `NonCommutativeGroebnerBasis` in 14.3?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318454

With the release of Wolfram Language 14.3, there is now built-in support for non-commutative Groebner bases via functions like  NonCommutativeGroebnerBasis , ... 
[algebraic-manipulation] [algebra] [group-theory]
 

asked by Flint https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=115347 Score of 4

12.3.1.6 ParallelMap code doesn't run in parallel on Wolfram Compute Services, but it does on local machine

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318460

This question seems related to 
this one that hasn't received any answers. 
As will result from the minimal reproducible example below, my code, that does polynomial factorizations, when run on Wolfram ... 
[parallelization] [high-performance-clusters]
 

asked by kikon https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=89241 Score of 3

12.3.1.7 RegionDistance Example Broken?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318470

In the Applications section of the help for RegionDistance there is an example labeled "Compute the dilation of a region:" that dilates the discretized outline of France.  When I try to run ... 
[bugs] [regions] [distance]
 

asked by EricMock https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1281 Score of 2

answered by yarchik https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9469 Score of 2