8.8.3 Can you answer these questions?

8.8.3.1 Syntax Problem In NDSolve with Free Boundaries

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=264593

I am considering a problem with two free boundaries.  When I consider the equation: 
... 
[differential-equations] [equation-solving] [numerics] [boundary-conditions]
 

asked by MCB https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=84875 Score of 1

answered by bbgodfrey https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1063 Score of 0

8.8.3.2 Crop or mask geographics

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=264730

I am trying to crop a map drawn with  GeoGraphics . The map consists of  Line  and  Polygon  ... 
[graphics] [image-processing] [geography] [geographics]
 

asked by mikabozu https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74721 Score of 2

8.8.3.3 How to improve the accuracy of grain statistics

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=264875

Grain boundaries are usually not very distinct, like pic1 , pic2 and pic3 
 
... 
[image-processing]
 

asked by yode https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=21532 Score of 1