7.15.1 Top new questions this week

7.15.1.1 Replacing duplicates instead of deleting them

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=245078

My code replaces each repeated element by "X". 
... 
[list-manipulation]
 

asked by azerbajdzan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53172 10 votes

answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 18 votes

7.15.1.2 RecurrenceTable and While

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=245030

Good day. 
Let's take an example from Help on  RecurrenceTable : 
... 
[iteration]
 

asked by macros https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=79485 6 votes

answered by Roman https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=26598 3 votes

7.15.1.3 Speed up averaging of numerically solved differential equations

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=245121

I deals with a coupled system with non-linear differential equations of first order. I perform numerical solution with  NDSolve  and then use obtained solutions, <... 
[differential-equations] [numerical-integration] [compile]
 

asked by Artem Alexandrov https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=49992 5 votes

answered by Alex Trounev https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=58388 1 vote

7.15.1.4 FEM: how to redo a composed boundary mesh for better quality?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=245050

Suppose you have  region  with 2 materials: one embedding material ( matrix ) containing some particles (... 
[finite-element-method] [mesh]
 

asked by Mauricio Fernández https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=24710 4 votes

answered by Tim Laska https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=61809 5 votes

7.15.1.5 Were these Images made with Wolfram Language / Mathematica?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=245080

I am currently writing a paper in which Fibonacci Spirals are discussed. In the text of the paper the mathematics of these objects is discussed and the relevant equations and relationships are shown ... 
[graphics] [image]
 

asked by urquiza https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=79636 4 votes

answered by flinty https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72682 9 votes

7.15.1.6 How to find the repeated elements in a vector

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=245068

Is there a way to write a function where the input is a vector and the output is the elements in the vector that are repeated? 
I was trying to use something along the lines: 
... 
[list-manipulation] [scripting]
 

asked by Trashlife https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=79628 4 votes

answered by Roman https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=26598 7 votes

7.15.1.7 How to separate two regions in DensityPlot

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=245051

I want to separate two regions in DensityPlot similar to the attached image. 
 
In my code and the obtained result, I want to separate the region with less value of one from others. How can I do this? ... 
[plotting]
 

asked by mehrosadat ebrahimi https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=40575 4 votes

answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 4 votes