2.20.1 Top new questions this week

2.20.1.1 Tex capacity exceeded compiling only 50 lines latex file (pdftex), seg. fault (lualatex)

http://tex.stackexchange.com/questions/310625/tex-capacity-exceeded-compiling-only-50-lines-latex-file-pdftex-seg-fault-l

This is one of the strangest things I've seen in Latex (and I have seen many strange things). 50 lines of code, almost all of it is verbatim. 
Any small change to the verbatim can cause the error to  ...
 

- asked by Nasser (16 votes), answered by egreg (17 votes)

2.20.1.2 Aligning the minus sign in a matrix

http://tex.stackexchange.com/questions/311018/aligning-the-minus-sign-in-a-matrix

I would like to be able to align the minus sign in a matrix so that the minus is to the left of the numerical column.  I have written my matrix as the following: 
\begin{eqnarray} 
\left( 
...
 

- asked by Irreversible (14 votes), answered by Henri Menke (21 votes)

2.20.1.3 How does the shorten option work?

http://tex.stackexchange.com/questions/311213/how-does-the-shorten-option-work

Many sample TikZ images use the shorten option in the tikzpicture options. 
Even though I can figure out roughly how it works and what it is supposed to do by looking at many examples, I was surprised  ...
 

- asked by Stephen Bosch (14 votes), answered by TorbjA~,rn T. (16 votes)

2.20.1.4 When to use tabbing

http://tex.stackexchange.com/questions/310518/when-to-use-tabbing

When should I use the tabbing environment?  Whenever I want to line things up I reach for tabular, and I have this vague worry that I sometimes miss a simpler solution because I don't think in terms  ...
 

- asked by Mark (13 votes), answered by Werner (10 votes)

2.20.1.5 Fine tuning diacritical marks in fonts

http://tex.stackexchange.com/questions/311166/fine-tuning-diacritical-marks-in-fonts

I am about to make the paradigm-shift from the traditional way of hard-coding fonts with diacritical marks on top of them to simply using utf8. What surprised me, however, that the rendering of the  ...
 

- asked by Matsmath (10 votes), answered by Jonas Granholm (9 votes)

2.20.1.6 How can I align two boxes to the top right and top left of a surrounding box?

http://tex.stackexchange.com/questions/310866/how-can-i-align-two-boxes-to-the-top-right-and-top-left-of-a-surrounding-box

Assuming the following structure (auto-generated from another document), how should I define \csup and \csub to line the sup boxes to line up with the top of the neighbouring box, and the sub boxes to  ...
 

- asked by ClA~(c)ment (10 votes), answered by Mico (7 votes)

2.20.1.7 Use Tikz to draw this beautiful symmetric tree

http://tex.stackexchange.com/questions/311615/use-tikz-to-draw-this-beautiful-symmetric-tree

To illustrate a problem I need to make this figure. 
I can to do: 
\documentclass[12pt,fleqn]{article} 
\usepackage[portuguese,brazil]{babel} 
\usepackage[latin1]{inputenc} 
...
 

- asked by benedito (9 votes), answered by TorbjA~,rn T. (4 votes)