Combinatorics, or at least part of it, is the art of counting. For example: how many derangements does a set with n n elements have? A derangement is a bijection with no fixed points. We’ll count them ...

I used it right there to insert an em dash, which is a symbol I'd otherwise need to copy over from somewhere else. What ...

Real Use: Freed up 24GB in under 5 minutes by deleting old video caches and iOS backups. Some apps burn battery even when ...

How much would you pay for a limited-edition new wearable product? If you’re anything like this engineer: a pretty penny.

On cinema, improvisation, artificial intelligence and the search for a common European emotion – pianist and composer ...

Analyze the time and space complexity of your solution. Compare your solution to others and identify areas for improvement.

We all know regular exercise is critical for one’s overall health and well-being, and daily we are reminded of the importance ...

Persistent Link: https://ieeexplore.ieee.org/servlet/opac?punumber=55 ...

The former president is a master communicator. Steal some of his magic by borrowing one of his favorite rules for better ...

I think it's fair to say that we’re entering a moment where the boundaries of authorship are beginning to blur, and perhaps ...