Good grief. Ever since I published last week's “How To” on Gray Codes, emails have been flooding in containing all kinds of interesting tidbits of information. For example, one reader informed me that ...

PhD students spend their time pursuing whatever general paths their supervisor has given them, and if they are lucky, it yields enough solid data to finally write a thesis without tearing their hair ...

Permutation codes are mathematical constructs that utilise the properties of permutations to encode and protect information, with applications spanning powerline communications, flash memory storage ...