Let C be the square oriented counterclockwise with corners (0,0), (8,0), (8,8), and (0,8). If we label the edges of the square as C₁, C₂, C₃, C₄ starting from the bottom edge going counterclockwise, then the edges may be linearly parameterized, with 0 ≤ t ≤ 8, by:
edge C₁
x₁(t)=
