7.29.1 Top new questions this week

7.29.1.1 Mathematica 12.3.1 CapForm does not work with ContourStyle anymore?
7.29.1.2 Understanding Partition
7.29.1.3 Telling Mathematica to treat square roots as real valued
7.29.1.4 AnyTrue is too good (compared to MemberQ)
7.29.1.5 Multiplication with zero
7.29.1.6 New offset Dashing argument in 12.3
7.29.1.7 Smoother boundaries between components of segmented image
7.29.1.1 Mathematica 12.3.1 CapForm does not work with ContourStyle anymore?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=254028

Just upgraded to 12.3.1 from 12.1. 
In 12.3.1, 
... 
[plotting] [style] [compatibility] [dashing]
 
asked by ThunderBiggi https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=18695 10 votes
answered by ihojnicki https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=18638 12 votes
7.29.1.2 Understanding Partition

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=255119

I came across the difficulty of understanding the logic of interaction of the fourth and fifth arguments of  Partition . 
Here is an example: 
... 
[list-manipulation] [partitions]
 
asked by Alexey Popkov https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=280 8 votes
answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 6 votes
7.29.1.3 Telling Mathematica to treat square roots as real valued

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=254080

I often deal with problems which I know are real-valued, but Mathematica skips some simplifications because it doesn't know which branch of  Sqrt  to take. Is there ... 
[algebraic-manipulation]
 
asked by Yaroslav Bulatov https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=217 7 votes
answered by E. Chan-López https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53427 4 votes
7.29.1.4 AnyTrue is too good (compared to MemberQ)

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=253971

Let L be a list of integers, and  denote an explicit integer. 
I've thought the most natural way to tell whether  belongs to L is 
 In[1]  MemberQ[L, ] 
 
But there ... 
[list-manipulation] [functions] [performance-tuning] [built-in-symbols]
 
asked by imida k https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=34532 7 votes
answered by Carl Woll https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=45431 6 votes
7.29.1.5 Multiplication with zero

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=254110

So I have a function $f(x) = g(x) h(x)$ that I want to evaluate on a large discrete set $\Lambda$ expressed as a list. I have that $g$ is complicated and takes time to evaluate at each point in the ... 
[performance-tuning]
 
asked by spaceman https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=77847 6 votes
answered by Henrik Schumacher https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=38178 8 votes
7.29.1.6 New offset Dashing argument in 12.3

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=254083

After finding out that in 12.3 two new optional arguments have been added to  Dashing , I decided to have a look at them. Unfortuantely, I don't understand the way ... 
[graphics] [documentation] [version-12.3] [dashing]
 
asked by ThunderBiggi https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=18695 6 votes
7.29.1.7 Smoother boundaries between components of segmented image

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=253824

I'd like to use boundaries between components of a segmented image to create a mesh for finite elements, as described in Mesh for Images for three materials and meshes with multiple regions from 2D ... 
[image-processing] [mesh] [smoothing]
 
asked by tad https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=70428 6 votes
answered by Alexey Popkov https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=280 3 votes