Here I illustrate how Clojurists (including Yours Truly) like to solve problems and model things using hammocks, pure functions, and the "it's just data" ideology. Also, while the *problem* focuses on "design in the small" of application logic, many ideas in the *solution* can—and do—scale all the way to "design in the large" of whole systems.

Newcomers to Clojure so frequently ask this question that an FAQ/Guide is being discussed, to add to the Clojure website. I struggled a lot with the question too, when starting off in Clojureland. Here are my notes and opinions.

FizzBuzz is everywhere. Every programmer passes through its rite of passage, or at least bears witness to another. Over the years, many gentlenerds have taken it upon themselves to discover ever new ways to incant those hoary symbols. I hereby enjoin these few drops of Clojure to that roiling ocean of FizzBuzzery.

Dismal arithmetic is just like the arithmetic you learned in school, only simpler: there are no carries, when you add digits you just take the largest, and when you multiply digits you take the smallest. How does code look in the two languages I like a lot; Clojure and APL?