8.1.1 Top new questions this week

8.1.1.1 Is it possible to extract vertices and lines from this image?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=261390

I have the following image 
 
Is it possible to extract the lines from this image and then convert those lines to a graph representation? I tried using  ImagesLines[]  ... 
[graphs-and-networks] [image-processing]
 

asked by AccidentalTaylorExpansion https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=45428 14 votes

answered by halmir https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=590 20 votes

8.1.1.2 Does Mathematica evaluate Sqrt[1] to +1 or -1 in this differential equation?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=261407

This is known ode that  DSolve  generates a wrong extra solution. 
Been there since 2010. I do not know if this was posted about here before or not. If it was, will ... 
[differential-equations] [bugs]
 

asked by Nasser https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=70 13 votes

answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 6 votes

8.1.1.3 How to get axes labels with MultiaxisArrangement

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=261425

I am delighted to see the new MultiaxisArrangement feature, but when I tried it, I could not figure out how to label the two axes. For example, the following produces no axis labels. Nor does any ... 
[plotting] [labeling]
 

asked by abwatson https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1709 12 votes

answered by Bob Hanlon https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9362 7 votes

8.1.1.4 GeometricTest doesn't work in ellipse

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=261535

Let me look at a circle case: 
... 
[bugs] [computational-geometry]
 

asked by yode https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=21532 10 votes

answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 16 votes

8.1.1.5 What is the most efficient way to define a Loop until function?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=261473

Mathematica has the  While  function which is very convenient when we need to process some code until the attainment of a certain state (identified with a condition). ... 
[programming] [procedural-programming] [iteration]
 

asked by Denis Cousineau https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=21675 10 votes

answered by Szabolcs https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=12 9 votes

8.1.1.6 Rule rewriting behavior

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=261593

This is kind of meta-programming attempt. Below are two snippets: 
Snippet 1: 
... 
[replacement] [scoping] [meta-programming]
 

asked by Pavel Perikov https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=67512 8 votes

answered by thorimur https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=63584 14 votes

8.1.1.7 Converting a Text into a list of points

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=261633

How can i convert a text/font into a list of Points? 
For example,I have this letter h, 
... 
[plotting] [graphics] [fonts]
 

asked by Irtiza https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=12251 8 votes

answered by cvgmt https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72111 12 votes