4.27.2 Greatest hits from previous weeks

4.27.2.1 Why should I avoid the For loop in Mathematica?

https://mathematica.stackexchange.com/questions/134609/why-should-i-avoid-the-for-loop-in-mathematica

 
Some people advise against the use of For loops in Mathematica. Why?  Should I heed this advice?  What is wrong with For?  What should I use instead?
 

- asked by Szabolcs (52 votes), answered by Szabolcs (62 votes)

4.27.2.2 Image processing: Floor plan - detecting rooms' borders (area) and room names' texts

https://mathematica.stackexchange.com/questions/19546/image-processing-floor-plan-detecting-rooms-borders-area-and-room-names-t

 
 
 
Here is a simple building floor plan. I would like to derive the rooms as (rectangular) components and the names of the rooms. This is very common representation of building floor plans. 
 
The  ...
                                                                                  

                                                                                  
 

- asked by s.s.o (52 votes), answered by nikie (52 votes)