10.57.2 Greatest hits from previous weeks

10.57.2.1 bibtex vs. biber and biblatex vs. natbib

https://tex.stackexchange.com/landing/r/digest?cta=question&id=25701

I've heard of many different bibliography-related packages/platforms/?. What's the difference between the following, which is good for what tasks, advantages/disadvantages, which one is the most ... 
[bibliographies] [biblatex] [bibtex] [natbib] [biber]
 

asked by doncherry https://tex.stackexchange.com/landing/r/digest?cta=user&id=4012 Score of 665

10.57.2.2 How can I get bold math symbols?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=595

To make Latin-letter variables bold I can use e.g. \mathbf{a}, but while putting Greek letters or symbols such as \nabla inside \mathbf doesn't cause any errors or warnings, it also doesn't do ... 
[fonts] [math-mode] [symbols] [bold]
 

asked by Michael Underwood https://tex.stackexchange.com/landing/r/digest?cta=user&id=32 Score of 646

answered by Mark Meckes https://tex.stackexchange.com/landing/r/digest?cta=user&id=206 Score of 551

10.57.2.3 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 Score of 109

answered by Mathematician https://tex.stackexchange.com/landing/r/digest?cta=user&id=49199 Score of 122

10.57.2.4 How to create fixed width table columns with text raggedright/centered/raggedleft?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=12703

I would like to create a table with some columns' width specified, while the text in those columns should be centered both horizontally and vertically. I found out that 
\usepackage{array} 
\begin{... 
[tables] [horizontal-alignment] [width]
 

asked by Covi https://tex.stackexchange.com/landing/r/digest?cta=user&id=3970 Score of 317

answered by lockstep https://tex.stackexchange.com/landing/r/digest?cta=user&id=510 Score of 481

10.57.2.5 inputenc Error: Unicode char \u8: not set up for use with LaTeX

https://tex.stackexchange.com/landing/r/digest?cta=question&id=83440

This is with ref to my previous question Package clash in multilingual report. 
\documentclass[11pt,table,a4paper]{article} 
\usepackage{lmodern} 
\usepackage[utf8]{inputenc} 
\usepackage[T1]{fontenc} 
\... 
[errors] [unicode] [languages] [cyrillic] [input-encodings]
 

asked by Manish https://tex.stackexchange.com/landing/r/digest?cta=user&id=19116 Score of 138

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 102

10.57.2.6 What is the LaTeX command for "em dash" (a^\200\224)?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=53413

I am trying to insert the symbol in the title of the question, which I copied from a PDF article, but it appears as space in the output file. What is the corresponding LaTeX command? 
[symbols] [punctuation]
 

asked by Tarek https://tex.stackexchange.com/landing/r/digest?cta=user&id=13964 Score of 382

answered by Keks Dose https://tex.stackexchange.com/landing/r/digest?cta=user&id=4736 Score of 408

10.57.2.7 What does the phrase "Underfull \hbox (badness 10000) in paragraph" actually mean?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=334246

What does the actual phrase above mean? 
[errors] [tex-core] [boxes] [paragraphs] [underfull]
 

asked by Charles Boehm https://tex.stackexchange.com/landing/r/digest?cta=user&id=116447 Score of 131

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 109