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"Just send me a PDF!" - but what kind of PDF? As Professor Brailsford explains, PDF is simply a wrapper which can contain a variety of joys!
/ computerphile
/ computer_phile
This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: bit.ly/nottscomputer
Computerphile is a sister project to Brady Haran's Numberphile. More at www.bradyharan.com