"p.s. You're missing a square bracket after [1 2]. I was puzzling even more before I realized that :)" Whoops! "Both idioms are useful, but I use the parallel

"p.s. You're missing a square bracket after [1 2]. I was puzzling even more before I realized that :)" Whoops! "Both idioms are useful, but I use the parallel one quite a bit more than the nested one. Does FOR handle both?" Not directly---to get a parallel product, you would use something like: (map vector '(0 1 2 3 4 5) '(1 2))