let y = -(l2.A * l1.B - l1.A * l2.B) / (l1.A - l2.A)
PointD(x, y)
+let inline linePassThroughSegment (l: Line) (p1: PointD) (p2: PointD) : bool =
+ let p = pointFromTwoLines l (lineFromTwoPoints p1 p2)
+ sign (p.X - p1.X) <> sign (p.X - p2.X)
+
let inline squaredDistanceTwoPoints (p1: PointD) (p2: PointD) =
(p1.X - p2.X) ** 2.0 + (p1.Y - p2.Y) ** 2.0