[APL][1] -------- This language is incredibly powerful and very terse, it *will* hurt your brain. For starters it's tricky to use without a custom keyboard, or at least a keyboard overlay to show up all the obscure symbols it uses. ![APL Keyboard][2] Then the language is of the vector/array-based paradigm and specialises towards complex linear algebra. The original version did not even have loop constructs, anything and everything done by chaining rather unusual array operators together. * `strip_tags()` anybody? (borrowed from Wikipedia) ![strip_tags() ala APL][3] [1]: http://en.wikipedia.org/wiki/APL_(programming_language) [2]: https://i.sstatic.net/HSVJV.png [3]: https://i.sstatic.net/AnaFz.gif