Consider the number of steps needed by algorithms to locate the minimum of functions defined on the d-cube, where the functions are known to have no local minima except the global minimum. Regard this ...

The Rubik’s Cube looks like a simple kids’ toy, but anyone who has tried to line up the block’s colors knows how challenging it is. For experts, the current record is about three and a half seconds to ...

We’ve mastered the Rubik’s Cube. By we, though, I don’t necessarily mean that you and I have figured out how to solve the classic puzzle, but other members of humanity have certainly shown the Cube ...