Wikipedia has some good animations of this:<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;B%C3%A9zier_curve#Constructing_B.C3.A9zier_curves" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;B%C3%A9zier_curve#Constructing...</a>