2.6.1 Top new questions this week

2.6.1.1 pdflatex and commercial book printing

http://tex.stackexchange.com/questions/291432/pdflatex-and-commercial-book-printing

I have published several textbooks that were typeset using pdflatex.  In each case, when I sent them to the commercial book printer, the technicians doing the preflighting invariably found some  ...
 

- asked by Grant Petty 23votes

2.6.1.2 \sum caused \sqrt to not be slanted

http://tex.stackexchange.com/questions/291216/sum-caused-sqrt-to-not-be-slanted

As shown in the MWE below, \sum (esp. when the index and lower/upper bounds are defined) is causing the slanty part of the sqrt sign to be not slanty. Is there a way to preserve it? 
...
 

- asked by ceiling cat (18 votes), answered by Ulrike Fischer (24 votes)

2.6.1.3 Detect whether running on pdfTeX or Knuth's TeX for conditional include

http://tex.stackexchange.com/questions/292012/detect-whether-running-on-pdftex-or-knuths-tex-for-conditional-include

Does anyone know a way to detect whether one is running in pdfTeX or Knuth's TeX?  I want to be able to conditionally include extra features when a document is being built using pdfTex, but also  ...
 

- asked by vancan1ty (17 votes), answered by Christian Hupfer (10 votes)

2.6.1.4 Draw an animated gif of trigonometry function

http://tex.stackexchange.com/questions/291627/draw-an-animated-gif-of-trigonometry-function

How is an animated diagram like this drawn? 
Here is what I could get if I try my best for the code: 
\documentclass{standalone} 
\usepackage{tikz,pgfplots} 
\begin{document} 
...
 

- asked by Thumbolt (16 votes), answered by Henri Menke (22 votes)

2.6.1.5 How to draw fully packed loops on medial lattice?

http://tex.stackexchange.com/questions/291120/how-to-draw-fully-packed-loops-on-medial-lattice

I want to draw a variant of the following figure, 
[Figure 22 of Freedman et al, Annals of Physics,310(2):428a^\200\223492, April 2004.] 
The lattice and dashed lines are easy. Using two for loops 
...
 

- asked by anecdote (13 votes), answered by Symbol 1 (14 votes)

2.6.1.6 Creating a multi-line colored box in LaTeX

http://tex.stackexchange.com/questions/291888/creating-a-multi-line-colored-box-in-latex

I am trying to create a colored box in LaTeX that has two lines. I would like the text to be centered. Ideally, I want to be able to change the text font and the size of the colored box. 
So, an  ...
 

- asked by LanneR (12 votes), answered by Christian Hupfer (15 votes)

2.6.1.7 Summary of TeX Capacity Limits

http://tex.stackexchange.com/questions/292300/summary-of-tex-capacity-limits

I seem to often run into capacity issues and have been upping the limits each time. There are several question on this site pertaining to these. However, there seems to be some conflicting information  ...
 

- asked by Peter Grill (11 votes), answered by David Carlisle (3 votes)