vector.cpp

double类型的3维矢量运算类库

#include "Vector.h"

#include <math.h>

Vector operator+(Vector v1,Vector v2) {return Vector(v1.x+v2.x,v1.y+v2.y,v1.z+v2.z);}
Vector operator-(Vector v1,Vector v2) {return Vector(v1.x-v2.x,v1.y-v2.y,v1.z-v2.z);}
Vector operator-(Vector v)            {return Vector(-v.x,-v.y,-v.z);}

Vector operator*(Vector v, double k)  {return Vector(k*v.x, k*v.y, k*v.z);}
Vector operator*(double k, Vector v)  {return Vector(k*v.x, k*v.y, k*v.z);}
Vector operator/(Vector v, double k)  {return Vector(v.x/k, v.y/k, v.z/k);}

double operator^(Vector v1,Vector v2) {
	return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
}
Vector operator*(Vector v1,Vector v2) {
	return Vector(	v1.y * v2.z - v1.z*v2.y, 
					v1.z * v2.x - v1.x*v2.z, 
					v1.x * v2.y - v1.y*v2.x);
}