Erratum: mouseX and mouseY p. 46 and 47

[b-g]

Wrong: ellipse(mouseX, mouseX, 40, 40);
Correct: ellipse(mouseX, mouseY, 40, 40);

function setup() {
  createCanvas(720, 720);
  noFill();
  console.log("Hallo")
}

function draw() {
  ellipse(mouseX, mouseY, 40, 40);
}