Extending struct Double

Here is the class `DoubleExtensions` which defines the methods `Square` and `Sqrt`:

using System; public static class DoubleExtensions{ public static double Square(this Double d){ return d * d; } public static double Sqrt(this Double d){ return Math.Sqrt(d); } } |

The extension methods can be called in the following ways in the method `DistanceTo` in class `PointExtensions:`

using System; public static class PointExtensions{ public static double DistanceTo(this Point p1, Point p2){ return ((p1.X - p2.X).Square() + (p1.Y - p2.Y).Square()).Sqrt(); } } |

Do you like the idea of calling numeric functions, such as `Square` as `n.Square()` instead of `Square(n)`?