 import Foundation
 
 /**
- Cubic Bezier Curve
+ Cubic Bézier Curve
  */
 public struct CubicBezierCurve: BezierCurve, Equatable, ArcApproximateable {
  

        let nc2 = e + (v2-e) / oneMinusT
        // ...done
        self.init(p0:s, p1: nc1, p2: nc2, p3: e)
        
    }
    
    public init(lineSegment l: LineSegment) {

        self.p1 = points[1]
        self.p2 = points[2]
        self.p3 = points[3]
    }
    
    public init(p0: BKPoint, p1: BKPoint, p2: BKPoint, p3: BKPoint) {
