Some inventions operate in a recursive or iterative manner. This could be so of a machine that repeats actions or functions on a single article or to produce multiple articles, or operates on data.

In their original paper presenting Google, Larry and Sergey define PageRank like this: PR(A) = (1-d) + d (PR(T1)/C(T1) + ... + PR(Tn)/C(Tn)). We dive into what that really means. Earlier today, Dixon ...