Vector& operator-=(Vector const v); // Vector minus Vector self-assignment\r
Vector& operator-=(double const v); // Vector minus constant self-assignment\r
\r
+ bool operator==(Vector const v); // Check for equality\r
+ bool operator!=(Vector const v); // Check for inequality\r
+\r
Vector Unit(void);\r
double Magnitude(void);\r
double Angle(void);\r