10.33.2 Greatest hits from previous weeks

10.33.2.1 Where do I place my own .sty or .cls files, to make them available to all my .tex files?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=1137

I know how to define a package or a class, but how do I make it available (to myself) at all times? 
Say I have the package file commonstuff.sty (or myprettyclass.cls), that I want to be able to ... 
[packages] [installing] [document-classes] [texmf]
 

asked by Tomas Aschan https://tex.stackexchange.com/landing/r/digest?cta=user&id=223 Score of 641

answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 Score of 407

10.33.2.2 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 638

answered by Mark Meckes https://tex.stackexchange.com/landing/r/digest?cta=user&id=206 Score of 547

10.33.2.3 How to add an extra level of sections with headings below \subsubsection

https://tex.stackexchange.com/landing/r/digest?cta=question&id=60209

I have a document which requires many levels of sectioning. I have sections, subsections and subsubsections, but require one more level below that. I can't change the sections to be parts and move ... 
[sectioning] [sections-paragraphs]
 

asked by robintw https://tex.stackexchange.com/landing/r/digest?cta=user&id=495 Score of 396

answered by Gonzalo Medina https://tex.stackexchange.com/landing/r/digest?cta=user&id=3954 Score of 355

10.33.2.4 How to typeset subscript in usual text mode?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=1013

It's easy to make subscripts in math mode: $a_i$. 
How do I make a subscript outside math environment, likethis? 
[subscripts]
 

asked by P Shved https://tex.stackexchange.com/landing/r/digest?cta=user&id=280 Score of 321

answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 Score of 210

10.33.2.5 Is there any way to do a correct word count of a LaTeX document?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=534

Often assignments (or even papers) have a word count limit. That is not a big deal when using Word, but I don't know how to do that using LaTeX. My solution has been so far to compile the document and ... 
[packages] [compiling] [word-count] [scripts]
 

asked by Vivi https://tex.stackexchange.com/landing/r/digest?cta=user&id=14 Score of 423

answered by ShreevatsaR https://tex.stackexchange.com/landing/r/digest?cta=user&id=48 Score of 229

10.33.2.6 Align equation left

https://tex.stackexchange.com/landing/r/digest?cta=question&id=145657

Here is my split equation: 
\documentclass{article} 
\usepackage{amsmath} 
\begin{document} 
\begin{equation} 
\begin{split} 
a_{ijk} =& \frac {Pr(M_{I} =2  \&  M_J=1 \& M_K =1 | I=i , J=j , K=... 
[equations] [align]
 

asked by user35571 https://tex.stackexchange.com/landing/r/digest?cta=user&id=35571 Score of 128

answered by Ludovic C. https://tex.stackexchange.com/landing/r/digest?cta=user&id=31058 Score of 123

10.33.2.7 How to add a forced line break inside a table cell

https://tex.stackexchange.com/landing/r/digest?cta=question&id=2441

I have some text in a table and I want to add a forced line break. I want to insert a forced line break without having to specify the column width, i.e. something like the following: 
\begin{tabular}{|... 
[tables] [line-breaking]
 

asked by Denilson SA~\[DownExclamation] Maia https://tex.stackexchange.com/landing/r/digest?cta=user&id=375 Score of 910

answered by Bernard https://tex.stackexchange.com/landing/r/digest?cta=user&id=38908 Score of 733