Todd Mateer, National Security Agency

Math Club, April 04, 2014.

 

The Magic of Error Correcting Codes

Error correcting codes are used in many technologiesthat we use every day including CDs, DVDs, and
smartphone QR images.  This talk will feature a series of six magic tricks based on simple error correcting codes.
The secrets behind each trick will be revealed so that you can amaze friends and family.  By learning how
the tricks work, you will also learn the mathematics which explain how error correcting codes work.
The talk will conclude with an explanation of the error correcting codes used in QR images.