5.42.2 Greatest hits from previous weeks

5.42.2.1 Problem with compiling BibTex: "no \citation commands" error

https://tex.stackexchange.com/landing/r/digest?cta=question&id=18045

I'm really new to BibTex, I just wonder what is going wrong when I have this kind of error when I try to compile my bibliography file. 
I found no \citation commands---while reading file  ... 
[bibliographies] [bibtex]
 

asked by zfm https://tex.stackexchange.com/landing/r/digest?cta=user&id=3559 70 votes

answered by Spike https://tex.stackexchange.com/landing/r/digest?cta=user&id=5150 27 votes

5.42.2.2 Using \footnote in a figure's \caption

https://tex.stackexchange.com/landing/r/digest?cta=question&id=10181

Maybe this is an easy one, but I struggled with this now too long :) 
I want to have a footnote in a caption of a figure, see the example. 
\begin{figure}[!ht] 
\caption{a figure  ... 
[floats] [footnotes] [captions]
 

asked by Matten https://tex.stackexchange.com/landing/r/digest?cta=user&id=1125 232 votes

answered by Dee https://tex.stackexchange.com/landing/r/digest?cta=user&id=16059 166 votes

5.42.2.3 Multi-line (block) comments in LaTeX

https://tex.stackexchange.com/landing/r/digest?cta=question&id=87303

In LaTeX, % can be used for single-line comments. For multi-line comments, the following command is available in the verbatim package. 
\begin{comment} 
Commented code 
\end{comment} 
But is there a  ... 
[comments]
 

asked by Arindam Pal https://tex.stackexchange.com/landing/r/digest?cta=user&id=17379 205 votes

answered by guillem https://tex.stackexchange.com/landing/r/digest?cta=user&id=3941 157 votes

5.42.2.4 Nice scientific pictures show off

https://tex.stackexchange.com/landing/r/digest?cta=question&id=158668

Task 
Show off your best scientific illustration ! 
The main purpose of this question is to share beautiful scientific pictures, preferably with an educational aspect. 
Content 
Your post must  ... 
[diagrams] [3d] [technical-drawing] [fun] [big-list]
 

asked by Thomas https://tex.stackexchange.com/landing/r/digest?cta=user&id=42660 501 votes

answered by Charles Staats https://tex.stackexchange.com/landing/r/digest?cta=user&id=484 299 votes

5.42.2.5 How to write a function (piecewise) with bracket outside?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=32140

How to write this Piecewise function using LaTeX? 
I tried 
$ 
\begin{array}{cc} 
\{ & 
\begin{array}{cc} 
0 & x\leq 0 \\ 
\frac{100-x}{100} & 0\leq x\leq 100 \\ 
0  ... 
[math-mode] [equations] [brackets]
 

asked by GarouDan https://tex.stackexchange.com/landing/r/digest?cta=user&id=5314 142 votes

answered by Ant https://tex.stackexchange.com/landing/r/digest?cta=user&id=6984 174 votes

5.42.2.6 Using the \tab Command

https://tex.stackexchange.com/landing/r/digest?cta=question&id=198432

I have seen several cases of people using the \tab command to insert a specific amount of space between objects (as opposed to the \hfill command which uses any remaining space).  However, I have  ... 
[spacing]
 

asked by Mathematician https://tex.stackexchange.com/landing/r/digest?cta=user&id=49199 55 votes

answered by Mathematician https://tex.stackexchange.com/landing/r/digest?cta=user&id=49199 57 votes

5.42.2.7 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 88 votes

answered by latex user https://tex.stackexchange.com/landing/r/digest?cta=user&id=25372 121 votes