32 	Vector &Vector::operator+=(const Vector &v)  in operator +=()  argument
34 		x += v.x;  in operator +=()
35 		y += v.y;  in operator +=()
36 		z += v.z;  in operator +=()
41 	Vector &Vector::operator-=(const Vector &v)  in operator -=()  argument
43 		x -= v.x;  in operator -=()
44 		y -= v.y;  in operator -=()
45 		z -= v.z;  in operator -=()
66 	bool operator==(const Vector &U, const Vector &v)  in operator ==()  argument
68 		if(U.x == v.x && U.y == v.y && U.z == v.z)  in operator ==()
74 	bool operator!=(const Vector &U, const Vector &v)  in operator !=()  argument
76 		if(U.x != v.x || U.y != v.y || U.z != v.z)  in operator !=()
82 	bool operator>(const Vector &u, const Vector &v)  in operator >()  argument
84 		if((u^2) > (v^2))  in operator >()
90 	bool operator<(const Vector &u, const Vector &v)  in operator <()  argument
92 		if((u^2) < (v^2))  in operator <()
98 	Vector operator+(const Vector &u, const Vector &v)  in operator +()  argument
100 		return Vector(u.x + v.x, u.y + v.y, u.z + v.z);  in operator +()
103 	Vector operator-(const Vector &u, const Vector &v)  in operator -()  argument
105 		return Vector(u.x - v.x, u.y - v.y, u.z - v.z);  in operator -()
108 	float operator*(const Vector &u, const Vector &v)  in operator *()  argument
110 		return u.x * v.x + u.y * v.y + u.z * v.z;  in operator *()
113 	Vector operator*(float s, const Vector &v)  in operator *()  argument
115 		return Vector(s * v.x, s * v.y, s * v.z);  in operator *()
118 	Vector operator*(const Vector &v, float s)  in operator *()  argument
120 		return Vector(v.x * s, v.y * s, v.z * s);  in operator *()
123 	Vector operator/(const Vector &v, float s)  in operator /()  argument
127 		return Vector(v.x * r, v.y * r, v.z * r);  in operator /()
130 	float operator^(const Vector &u, const Vector &v)  in operator ^()  argument
132 		return acos(u / Vector::N(u) * v / Vector::N(v));  in operator ^()
135 	Vector operator%(const Vector &u, const Vector &v)  in operator %()  argument
137 		return Vector(u.y * v.z - u.z * v.y, u.z * v.x - u.x * v.z, u.x * v.y - u.y * v.x);  in operator %()
140 	Vector operator*(const Matrix &M, const Vector &v)  in operator *()  argument
142 		return Vector(M(1, 1) * v.x + M(1, 2) * v.y + M(1, 3) * v.z,  in operator *()
143 		              M(2, 1) * v.x + M(2, 2) * v.y + M(2, 3) * v.z,  in operator *()
144 		              M(3, 1) * v.x + M(3, 2) * v.y + M(3, 3) * v.z);  in operator *()
147 	Vector operator*(const Vector &v, const Matrix &M)  in operator *()  argument
149 		return Vector(v.x * M(1, 1) + v.y * M(2, 1) + v.z * M(3, 1) + M(4, 1),  in operator *()
150 		              v.x * M(1, 2) + v.y * M(2, 2) + v.z * M(3, 2) + M(4, 2),  in operator *()
151 		              v.x * M(1, 3) + v.y * M(2, 3) + v.z * M(3, 3) + M(4, 3));  in operator *()
154 	Vector &operator*=(Vector &v, const Matrix &M)  in operator *=()  argument
156 		return v = v * M;  in operator *=()
159 	float Vector::N(const Vector &v)  in N()  argument
161 		return sqrt(v.x*v.x + v.y*v.y + v.z*v.z);  in N()
164 	float Vector::N2(const Vector &v)  in N2()  argument
166 		return v.x*v.x + v.y*v.y + v.z*v.z;  in N2()
169 	Vector lerp(const Vector &u, const Vector &v, float t)  in lerp()  argument
171 		return Vector(u.x + t * (v.x - u.x),  in lerp()
172 		              u.y + t * (v.y - u.y),  in lerp()
173 					  u.z + t * (v.z - u.x));  in lerp()