| Implementation of the Point class constructors. | Lecture 3 - slide 5 : 36 Program 2  | 
#include <cmath>
#include <iostream>
#include "point.h"
Point::Point(): x(0.0), y(0.0){
}
Point::Point(double x_coord): x(x_coord), y(0.0){
}
Point::Point(double x_coord, double y_coord): x(x_coord), y(y_coord){
}