2.27.2 Greatest hits from previous weeks

Greatest hits from previous weeks:

2.27.2.1 Big Parenthesis in an Equation

http://tex.stackexchange.com/questions/38868/big-parenthesis-in-an-equation

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  ...
 

- asked by jamaicanworm (75 votes), answered by qubyte (118 votes)

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

http://tex.stackexchange.com/questions/83440/inputenc-error-unicode-char-u8-not-set-up-for-use-with-latex

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} 
...
 

- asked by Manish (65 votes), answered by egreg (56 votes)