7.36.3 Can you answer these questions?

7.36.3.1 How to separate these circle based on their pixels mean intensity?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=257343

I have this image I want to separate green circles from yellow circle in two different images whiteout changing the pixel intensity information. I used the mean intensity 
... 
[image-processing] [image] [filtering] [binary] [microscopy]
 

asked by Del https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=80124 2 votes

answered by Daniel Huber https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=46318 0 votes

7.36.3.2 Computing Jacobians and Hessians directly for IPOPT optimizer

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=257403

I've got a complicated expression for my constraint function $g(x)$, too complicated to let Mathematica compute the derivatives symbolically. By forcing only numeric inputs, IPOPT does (it appears) an ... 
[mathematical-optimization]
                                                                                  

                                                                                  
 

asked by MikeY https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=47314 1 vote

7.36.3.3 NdSolveValue Freeze sensitive to initial condition

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=257298

I am trying to solve the following system of non-linear differential equations: 
... 
[differential-equations] [numerical-integration] [nonlinear] [debugging] [infinite-loop]
 

asked by Andrei https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=82434 2 votes

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