//My blog: https://idan-alter.github.io/

//This code is part of my blog post:

//"How Did They Calculate Square Roots in 1700 BCE?"

​

let a = 1;

let b = 2;

let scl = 120;

let shift = 5;

function setup() {

  createCanvas(650, 250);

  background(220);

  rect(shift, 5, a * scl, b * scl);

  frameRate(2);

}

function draw() {

  shift += a * scl;

  let new_side = (a + b) / 2;

  let new_side2 = 2 / new_side;

​

  a = min(new_side, new_side2);

  b = max(new_side, new_side2);

  console.log({ a: a, b: b });

​

  if (shift + a * scl > width) {

    shift = 5;

    background(220);

  }

  rect(shift, 5, a * scl, b * scl);

}

​