6.21.1 Top new questions this week

6.21.1.1 Display hexagon grid to visualize Langton's ant

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=230017

I am looking to recreate the following image from this reference as 
 
using Mathematica's Polygon documentation under "Applications" as a starting point. I want to eventually use Mathematica ... 
[graphics] [geometry] [visualization] [grid-layouts]
 

asked by C. Fuhrman https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=60593 10 votes

answered by flinty https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72682 8 votes

6.21.1.2 Position function error

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=230018

I recently upgraded from Mathematica 6 to the most recent version.  In my new version the  Position  function returns strange results that were not present in the old ... 
[list-manipulation]
 

asked by Peter https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74626 8 votes

answered by ciao https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=11467 11 votes

6.21.1.3 Mathematica 12.1.0.0 exporting low quality images at high ImageResolution

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=229973

I recently upgraded from Mathematica 11 to Mathematica 12.1.0.0 . I understand there were some UI changes to accommodate high resolution monitors. I'm not sure if this issue is related to that. I am ... 
[export]
 

asked by user3556814 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74618 8 votes

answered by Piotr Wendykier https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9239 1 vote

6.21.1.4 How can I count the color pixels in each partition of the image

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=230060

I have a image of 1000 x 1000 pixels of which I have made 5 x 5 partitions. After that I am looking for a way to count number of color pixels in each partition. Thanks in advance for help. 
... 
[graphics] [color] [image]
 

asked by Atique Khan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=59972 7 votes

answered by flinty https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72682 4 votes

6.21.1.5 Why does Nearest not return both equally distant values?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=230082

Define the following three vectors: 
 a = {0., 0., 0.}; 
b = {-0.5`, 0.4330127018922193`, 0.25`}; 
c = {-0.5`, 0.`, 0.`}; 
 
Note that the distance from a to c is the ... 
[nearest]
 

asked by abwatson https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1709 7 votes

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

6.21.1.6 BarChart does not display asymmetric error bars correctly

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=230145

BarChart seems to read the uncertainty in elements the other way around. The object: 
Around[5, {1, 10}] 
is evaluated as . 
However, when you use it in a BarChart, the uncertainties are swapped: 
... 
[plotting] [warning-messages] [charts] [around]
 

asked by Luis https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=24933 6 votes

6.21.1.7 Pattern-matching complex numbers as a + bi

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=230013

I just started working with Mathematica and am toying with pattern matching. There may be something obvious I'm missing in this, but I can't figure it out by myself. 
I want to write down a function ... 
[pattern-matching]
 

asked by ppln https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=69266 6 votes

answered by eyorble https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=52935 5 votes