Eqgen (2016)

try it yourself
source on github

Eqgen is an experiment to create visuals from mathematical expressions. It consists of a customizable expression generator and simple canvas rendering. The generator takes a (user-defined) set of functions and operators and a set of constant values and variables and then randomly builds expresssions for x,y coordinates and r,g,b color values, this system is then continuously evaluated to plot points on the canvas.

Eqgen even spawned some gifs some gifs that were shown at Fantoche 2016 GIF programme.

Tools: JavaScript, HTML5 Canvas, math.js to parse expressions