/// <summary>
/// Угол между векторами в радианах
/// </summary>
/// <param name="v2">Второй вектор</param>
/// <returns></returns>
public float GetAngle(Vector v2)
{
var a = ToOrigin();
var b = v2.ToOrigin();
return (float)Math.Atan2(a.X * b.Y - b.X * a.Y, a.X * b.X + a.Y * b.Y);
}
