10.38.1 Top new questions this week

10.38.1.1 Find Outer Boundary Of A Non-Convex Self-Intersecting Polygon

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=308465

Consider a self-intersecting non-convex polygon: 
 points = {{0, 0}, {2, 0}, {11, 4}, {-1, 4}, {4, .5}, {6, 7}, {7, 
0}, {10, 0}, {10, 6}, {0, 6}}; 
 
I need to find ... 
[regions] [geometry] [computational-geometry] [polygons]
 

asked by Anton https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=81381 Score of 14

answered by azerbajdzan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53172 Score of 7

10.38.1.2 Knight tour graph for a board with holes

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=308504

Using this function to construct a path for knight's tour on a given 6x3 board: 
 KnightTourGraph[6, 3, VertexSize -> 0.05, VertexLabels -> "Name"] 
 
... 
[plotting] [graphs-and-networks]
 

asked by Steve237 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=69429 Score of 9

answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 12

10.38.1.3 How to extract Polygon Coordinates in order

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=308497

Take a Polygon, and extract its  PolygonCoordinates 
... 
[geometry] [polygons]
 

asked by Tomi https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=36939 Score of 7

answered by azerbajdzan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53172 Score of 5

10.38.1.4 Trying to substitute an element of a given type by an integer

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=308546

I have two lists: 
 a = {{0}, {0, 0, 0}, {0, 0, 0, 16, 12}, {13, 7, 11}, {14}} 
b = {0, 2, 0, 2, 2, 2, 0, 0, -1, 2, 2, 2, 2, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0} 
 
The ... 
[list-manipulation] [replacement] [data-types]
 

asked by David Fígols Olaria https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=71904 Score of 6

answered by azerbajdzan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53172 Score of 4

10.38.1.5 How to use Or (  ) in a less verbose test function?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=308452

Suppose I have  myStrList , a list of one-character strings: 
... 
[function-construction]
 

asked by Andrew https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1185 Score of 5

answered by creidhne https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=41569 Score of 4

10.38.1.6 Determine position in a list satisfying a criteria using a variable

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=308483

Given a list of integers and a variable containing an integer find the position of the largest number less than the given number. The list is sorted and the given number is not in the list but between ... 
[list-manipulation] [filtering]
 

asked by ChuckD https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=85768 Score of 5

answered by E. Chan-López https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53427 Score of 5

10.38.1.7 Solving an n-th degree symbolic polynomial equation

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=308469

I want to find the positive root of the following function  F[x] , but using Solve does not work. For this kind of symbolic polynomial equation of degree n, it's ... 
[equation-solving] [polynomials]
 

asked by lotus2019 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=69835 Score of 5

answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 9