One of the examples recently added to PASTA/80 is the Hilbert curve, a "continuous fractal space-filling curve" first described by the German mathematician David Hilbert in 1891 (Wikipedia). Decades later, Ikea apparently adopted it as the basis for their store layouts. ;) Although complex-looking, the Hilbert curve can be generated by a few lines of elegant, recursive Pascal that run in no time, even on 8-bit machines.
https://github.com/pleumann/pasta80/blob/master/examples/hilbert.pas











