recursiveRandomAndCircleStudy.js

function setup() {
  createCanvas(800, 800);
  angleMode(DEGREES);
}

function draw() {
  background((95 / 100) * 255);
  push();
  translate(width / 2, height / 2);
  let ratio = 0.01;
  let angle_num = 10;
  for (let i = 0; i < 10000; i++) {
    let bool = random() > 0.5;
    let angle =
      (int(random(angle_num)) * 360) / angle_num +
      ((recursiveRandom(3, bool) - 0.5) * 360) / angle_num / 2;
    let n = recursiveRandom(random(0, 5), bool);
    let r = 200 * n;
    let x = cos(angle) * r * (bool ? 1 - ratio : 1 + ratio);
    let y = sin(angle) * r * (bool ? 1 - ratio : 1 + ratio);
    strokeWeight(2 - abs(n - 1) * 2);
    point(x, y);
  }
  pop();
  noLoop();
}

function recursiveRandom(count, bool = true) {
  let n = 1;
  while (count > 0) {
    n *= random();
    count--;
  }
  return bool ? 1 - n : 1 + n;
}