8.44.2 Greatest hits from previous weeks

8.44.2.1 How to change certain pages into landscape/portrait mode
8.44.2.2 Change image size
8.44.2.3 "Correct" way to bold/italicize text?
8.44.2.4 Align equation left
8.44.2.5 What are the available "documentclass" types and their uses?
8.44.2.6 Underscores in words (text)
8.44.2.7 When should I use \input vs. \include?
8.44.2.1 How to change certain pages into landscape/portrait mode

https://tex.stackexchange.com/landing/r/digest?cta=question&id=337

How can I change the orientation of some pages of my document into landscape mode, while leaving the others in portrait mode (or vice versa)? 
[landscape]
 
asked by hayalci https://tex.stackexchange.com/landing/r/digest?cta=user&id=183 Score of 405
answered by rcs https://tex.stackexchange.com/landing/r/digest?cta=user&id=118 Score of 419
8.44.2.2 Change image size

https://tex.stackexchange.com/landing/r/digest?cta=question&id=64836

I'm trying to change the image size (make it look smaller than the original). 
I tried with the next code but the image still shows at its original size. 
\begin{figure}[h!] 
\centering 
\... 
[graphics]
 
asked by Enrique https://tex.stackexchange.com/landing/r/digest?cta=user&id=16973 Score of 107
answered by DJJerome https://tex.stackexchange.com/landing/r/digest?cta=user&id=2863 Score of 102
8.44.2.3 "Correct" way to bold/italicize text?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=41681

Is either of these considered better/more readable/more "proper"/more conventional than the other for making text bold? If so, what is the reason? 
I like my text \textbf{bold} 
versus: 
I like my ... 
[best-practices] [bold] [italic]
 
asked by user541686 https://tex.stackexchange.com/landing/r/digest?cta=user&id=2694 Score of 473
answered by Todd Lehman https://tex.stackexchange.com/landing/r/digest?cta=user&id=8499 Score of 440
8.44.2.4 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 109
answered by Ludovic C. https://tex.stackexchange.com/landing/r/digest?cta=user&id=31058 Score of 101
8.44.2.5 What are the available "documentclass" types and their uses?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=782

Some of the available classes of documents in LaTeX are well known and widely used, such as the article and beamer classes, while others are not so well known, such as the standalone class. 
I found ... 
[document-classes] [big-list]
 
asked by Vivi https://tex.stackexchange.com/landing/r/digest?cta=user&id=14 Score of 466
answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 Score of 159
8.44.2.6 Underscores in words (text)

https://tex.stackexchange.com/landing/r/digest?cta=question&id=48632

How can I produce the text Word_one_two in LaTeX? 
I tried: 
Samp\_Dist\_Corr 
But, it doesn't quite look right. Also, I want it in the typewriter font, so actually, I'm doing: 
\texttt{Samp\_Dist\... 
[characters] [typewriter]
 
asked by Flux Capacitor https://tex.stackexchange.com/landing/r/digest?cta=user&id=11728 Score of 222
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 187
8.44.2.7 When should I use \input vs. \include?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=246

There are two different commands to incorporate another file into the source of some document, \input and \include. When should I use one or the other? What are the differences between them? Are there ... 
[include] [input]
                                                                                  

                                                                                  
 
asked by Phil Miller https://tex.stackexchange.com/landing/r/digest?cta=user&id=60 Score of 1378
answered by Michael Mrozek https://tex.stackexchange.com/landing/r/digest?cta=user&id=29 Score of 1246