DIRECTIONS: In this applet, you create a circular spline from biarcs. A biarc is a smooth piecewise circular curve created from two points p₀ and p₁ and tangent vectors v₀ and v₁ at p₀ and p₁ respectively. The applet creates the biarc by placing two pairs of control points. Each pair defines a point and a tangent vector, with the first giving the point and the second giving the tangent vector as the vector from the first point to the second point.