3.3.1 Top new questions this week

3.3.1.1 Add TikZ node at corner of a tabular cell

http://tex.stackexchange.com/questions/349045/add-tikz-node-at-corner-of-a-tabular-cell

I'm trying to place nodes in a tabular to obtain image like this 
I have a command to create an overlay TikZ node like this 
\newcommand{\tikzmark}[2][]{\tikz[remember picture,overlay]\node[inner  ...
 

- asked by Salim Bou (15 votes), answered by Heiko Oberdiek (13 votes)

3.3.1.2 Typesetting permutations and alignment

http://tex.stackexchange.com/questions/348625/typesetting-permutations-and-alignment

I am typesetting some permutations and am trying to highlight how their cycle structures interact because of how they overlap. Because of this, I want them to fit nicely into a grid. I've approximated  ...
 

- asked by Justin Lanier (11 votes), answered by David Carlisle (17 votes)

3.3.1.3 Function with cases or array

http://tex.stackexchange.com/questions/349250/function-with-cases-or-array

I want to get this function: 
I wrote two options, but I can't match the picture. Here is the first one: 
\begin{displaymath} 
P[\chi_{n+1}=j|\chi_{n}=i]= 
\begin{dcases} 
...
 

- asked by Enrique GF (10 votes), answered by Andrew (9 votes)

3.3.1.4 Write text in TikZ Drawing

http://tex.stackexchange.com/questions/348455/write-text-in-tikz-drawing

I need a small text under node 4, 0 and 3. Does anybody know how to do that? This is what I have 
\documentclass{article} 
\usepackage{tikz} 
\usetikzlibrary{arrows.meta} 
\begin{document} 
...
 

- asked by hcthysen (10 votes), answered by AboAmmar (9 votes)

3.3.1.5 How to create a electromagnetic spectrum using pgfplots package (together with colormaps)

http://tex.stackexchange.com/questions/348491/how-to-create-a-electromagnetic-spectrum-using-pgfplots-package-together-with-c

In my search of a good electromagnetic spectrum using LaTeX I came up short and thus I needed to create my own image. Here's how I did it.
 

- asked by Jimmy Westberg (10 votes), answered by Jimmy Westberg (11 votes)

3.3.1.6 Writing a Block Diagram for MRAC

http://tex.stackexchange.com/questions/349371/writing-a-block-diagram-for-mrac

I am in the processing of writing a block diagram that emulates the following figure using tikz. 
The code I generated starts from c(t) and begins a flow process to the rest of the blocks. It is  ...
 

- asked by trcomet (9 votes), answered by pschulz (15 votes)

3.3.1.7 Print \frac 4  3  m/s using the SI unit package

http://tex.stackexchange.com/questions/348836/print-frac43-m-s-using-the-si-unit-package

How do I print \frac{4}{3} m/s using the siunitx package? 
$\SI{\frac{4}{3}}{m/s}$ gives an error.
 

- asked by Thomas (8 votes), answered by Boris (14 votes)