5.39.2 Greatest hits from previous weeks

5.39.2.1 Show equation number only once in align environment

https://tex.stackexchange.com/landing/r/digest?cta=question&id=17528

I want the equation number to be shown only at the last line, or better, somewhere in the middle of all. So instead of (1), (2), ... only (1). 
I use \begin{align} ... \end{align} 
[equations] [align]
 

asked by Theta30 https://tex.stackexchange.com/landing/r/digest?cta=user&id=5350 170 votes

5.39.2.2 How to write two dot above a letter?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=152951

the two dots above a letter represents two derivative of varible t. 
My method: 
\documentclass[UTF8]{ctexart} 
\usepackage{amsmath} 
\usepackage{amssymb} 
\usepackage{graphicx} 
\usepackage{epstopdf} 
... 
[math-mode] [accents]
 

asked by mma https://tex.stackexchange.com/landing/r/digest?cta=user&id=43727 78 votes

5.39.2.3 Big Parenthesis in an Equation

https://tex.stackexchange.com/landing/r/digest?cta=question&id=38868

I have an equation contained inside \[...\], which automatically makes a \sum with sub- and superscripts turn big--so that the summation sign looks awkward inside parenthesis.  Any idea how to make  ... 
[math-mode] [delimiters]
 

asked by jamaicanworm https://tex.stackexchange.com/landing/r/digest?cta=user&id=9757 163 votes

answered by qubyte https://tex.stackexchange.com/landing/r/digest?cta=user&id=9043 242 votes

5.39.2.4 Subfigures side by side with captions

https://tex.stackexchange.com/landing/r/digest?cta=question&id=119984

I am using the following code to put my two figures side by side with different captions, 
\begin{figure*}[t!] 
\centering 
\begin{subfigure}[b]{0.5\textwidth} 
\centering 
... 
[captions] [subfloats]
 

asked by Sait https://tex.stackexchange.com/landing/r/digest?cta=user&id=14611 85 votes

answered by latex user https://tex.stackexchange.com/landing/r/digest?cta=user&id=25372 118 votes

5.39.2.5 How can I have two tables side by side?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=2832

Suppose I have two tables that don't have many columns (3, for example). How can I position them side by side? 
[tables] [positioning]
 

asked by bada https://tex.stackexchange.com/landing/r/digest?cta=user&id=572 147 votes

answered by TH. https://tex.stackexchange.com/landing/r/digest?cta=user&id=647 146 votes

5.39.2.6 How to type special/accented letters in LaTeX?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=8857

How to type these special letters from European languages in latex? 
A~\[Currency], A~(c), and L'? 
[symbols] [languages] [characters] [accents]
 

asked by user2918 https://tex.stackexchange.com/landing/r/digest?cta=user&id=2918 180 votes

answered by Kit https://tex.stackexchange.com/landing/r/digest?cta=user&id=791 147 votes

5.39.2.7 "inputenc Error: Unicode char \u8" error while trying to write a degree symbol (invisible character)

https://tex.stackexchange.com/landing/r/digest?cta=question&id=4268

No matter how I try to do it I always get the following error : 
! Package inputenc Error: Unicode char \u8:A^\[DiscretionaryHyphen] not set up for use with LaTeX. 
I have tried using A^\[DiscretionaryHyphen]A^\[DiscretionaryHyphen]A^\[DiscretionaryHyphen]$^{\circ}$, \deg, \textdegree,  ... 
[symbols] [unicode]
 

asked by levesque https://tex.stackexchange.com/landing/r/digest?cta=user&id=10 91 votes

answered by Antal Spector-Zabusky https://tex.stackexchange.com/landing/r/digest?cta=user&id=1425 87 votes