Circos. How to merge pdf files with preview in Leopard. Combining pdf documents on an Apple computer is easy.
The OSX built in preview application has the ability to merge two different pdf documents together and even move pdf pages within a pdf file. For all versions of OS X prior to Mountain Lion (that is Leopard, Snow Leopard, Lion) just follow the instructions below. Things have changed a little with Mountain Lion so I’ve made a new post on merging two pdfs in Mountain Lion, and there’s another slight change with OSX 10.9 Mavericks.
Learn to code. Flash. Geektools. Data hand tools. The flowering of data science has both driven, and been driven by, an explosion of powerful tools.
R provides a great platform for doing statistical analysis, Hadoop provides a framework for orchestrating large clusters to solve problems in parallel, and many NoSQL databases exist for storing huge amounts of unstructured data. The heavy machinery for serious number crunching includes perennials such as Mathematica, Matlab, and Octave, most of which have been extended for use with large clusters and other big iron.
Command Line. Python. CS 61B Lecture 21: Hash Tables. R. Perl. Awk. Excel shortcuts.