var k = 5;
var t = 0;

function setup() {
  createCanvas(670, 400);
  background('white');

}

function draw() {
  translate(width/2, height/2);
  
  for (var a = 0; a < TWO_PI; a += 0.01){
    var r = 100;
    var x = r * cos(a);
    var y = r * sin(a);
    strokeWeight(2);
    point(x,y); 
  }
  
}