Press Space, enter an expression (a string made of S's, K's, and I's, with some parentheses thrown in), press Enter, and press Space. Watch as the expression is evaluated before your eyes! SKI Calculus might sound or seem scary, but do not fear! It's simple!
Coding by me, @Turtle1331 Inspired by Esolang's page on SKI calculus Resources: To Mock a Mockingbird, by Raymond Smullyan (great read, uses birds as an analogy - brilliant!) Wikipedia: https://en.wikipedia.org/wiki/SKI_combinator_calculus Esolang (esoteric programming languages): https://esolangs.org/wiki/Combinatory_logic