// the function  random returns a value between a range. it evaluates to a 

// number. when the random number finishes exicuting it hands back this answer

//and taht answer is often stored in a variable. the function ellipse does not

//evaluate to anything, it just draws a circle and finishes.

​

// random is a function that returns a number. it was written with a line of 

// code : return something

// good use for like making conversions 

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(220);

}