I always do one-liner stuff in J, and I keep trying to get into F#. I recently bought Dyalog's APL. I thought the symbols would get in the way, but it's a whole other door opening. I really like the array-oriented languages for math and science. Even Julia and Numpy are attempts to do what the APL/J/K family have always done.
I've always had Racket on my machine, before it was called Racket. Having an IDE and a good standard library right off the bat is great for beginners and dabblers like myself. I do not program for a living. I only program when I have a math or engineering problem to solve.
