10.38.2 Greatest hits from previous weeks

10.38.2.1 Plotting Complex Quantity Functions
10.38.2.2 How to add a vertical line to a plot?
10.38.2.3 Image processing: Floor plan - detecting rooms' borders (area) and room names' texts
10.38.2.4 $\LaTeX$ and Mathematica
10.38.2.5 Skip header lines on import
10.38.2.6 Why should I avoid the For loop in Mathematica?
10.38.2.7 Is there a syntax for single-line comments for notebooks?
10.38.2.1 Plotting Complex Quantity Functions

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=3458

Trying to plot with complex quantities seems not to work properly in what I want to accomplish. I would like to know if there is a general rule/way of plotting when you have complex counterparts in ... 
[plotting] [complex] [faq]
 
asked by night owl https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=116 Score of 42
answered by Artes https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=184 Score of 29
10.38.2.2 How to add a vertical line to a plot?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=3561

In the plot below I would like to add two vertical lines at $x = \frac{\pi}{15} \pm \frac{1}{20}$. 
How can I do that? 
 
... 
[plotting]
 
asked by sjdh https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=515 Score of 87
answered by Ajasja https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=745 Score of 102
10.38.2.3 Image processing: Floor plan - detecting rooms' borders (area) and room names' texts

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=19546

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 problem 
 
... 
[image-processing]
 
asked by s.s.o https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=840 Score of 67
answered by Niki Estner https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=242 Score of 62
10.38.2.4 $\LaTeX$ and Mathematica

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=736

I quite often would like to draw graphics in my $\LaTeX$ documents using Mathematica. I have encountered three problems. I would like to know if there are any workarounds to these problems 
 
I would ... 
[graphics] [export] [latex]
 
asked by Thomas Rot https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=227 Score of 141
answered by Simon https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=34 Score of 48
10.38.2.5 Skip header lines on import

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=50718

When importing a data file what are the comment symbols for Mathematica? 
That is, given a file like this 
 
 blabla 
bulbul 
 
1 2 6 54 7 ... 
.. 
 
 
what symbol do I have ... 
[import] [text]
 
asked by MaxJ https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=14687 Score of 21
answered by george2079 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=2079 Score of 18
10.38.2.6 Why should I avoid the For loop in Mathematica?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=134609

Some people advise against the use of  For  loops in Mathematica. Why?  Should I heed this advice?  What is wrong with  For ?  What ... 
[core-language] [coding-style] [faq]
 
asked by Szabolcs https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=12 Score of 117
answered by Szabolcs https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=12 Score of 123
10.38.2.7 Is there a syntax for single-line comments for notebooks?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=1496

I'm aware that I can use  (* ... *)  to comment out stuff in a notebook. Many languages have a syntax for single-line comments, such as 
 
... 
[syntax] [comment]
 
asked by Peeter Joot https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=10 Score of 84
answered by Szabolcs https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=12 Score of 89