Recently, my stochastic professor introduced me to a problem he has been pondering for over two decades: on the two-dimensional integer lattice one shall flip a three-sided coin for each point and uniformly place one of three mirrors, , where denotes not placing a mirror. After having populated the world, one picks their favorite integer tuple and points a beam of light in one of the four cardinal directions. With what probability does the light fall into a loop, never fully escaping?
krrp is a functional, dynamic, interpreted and (theoretically) Turing-complete esolang implemented only using standard C. As such, on top of designing the actual language, any data structures, memory management and general auxiliary functionality deviating from the lacking capabilities offered by C had to be home-brewed and hand-crafted. A time-consuming task — I have been working on this language for the past year. However, it gives the language a certain purity, as its high-level functional approach rests firmly and closely on the state-changing, mutable and segmentation-faulting depths that are the C language.