2.7.2 Greatest hits from previous weeks

Greatest hits from previous weeks:

2.7.2.1 How to install the algorithms package?

http://tex.stackexchange.com/questions/28627/how-to-install-the-algorithms-package

According to my ubuntu 11.04 my texlive is the latest version. But when I tried to \usepackage{algorithm} it says file algorithm.sty is not found. I read the algorithm.pdf manual and tried latex  ...
 

- asked by Mark (37 votes), answered by Caramdir (53 votes)

2.7.2.2 'Floor' and 'ceiling' functions

http://tex.stackexchange.com/questions/42271/floor-and-ceiling-functions

Is there a convenient way to typeset the floor or ceiling of a number, without needing to separately code the left and right parts?  For example, is there some way to do $\ceil{x}$ instead of $\lceil  ...
 

- asked by jamaicanworm (78 votes), answered by egreg (102 votes)