algorithm =

souce: https://jn3008.tumblr.com/

a process or set of rules to be followed in calculations or other problem-solving operations, especially by a computer.
Algorithm visualizer is an interactive online platform that visualizes algorithms from code. At its simplest, this means dark gray values denote the current interval: shell, merge, quick.

Here comes one processing gifs by Joseff N. Posts. Impossible black and white black processing gif animation - stars in the space.
I like it like that.