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| template<class CoordSystem , class U >  | 
| DisplacementVector2D< CoordSystem, U >  | ROOT::Math::operator* (typename DisplacementVector2D< CoordSystem, U >::Scalar a, DisplacementVector2D< CoordSystem, U > v) | 
|   | Multiplication of a displacement vector by real number a*v.  
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| template<class CoordSystem1 , class CoordSystem2 , class U >  | 
| DisplacementVector2D< CoordSystem1, U >  | ROOT::Math::operator+ (DisplacementVector2D< CoordSystem1, U > v1, const DisplacementVector2D< CoordSystem2, U > &v2) | 
|   | Addition of DisplacementVector2D vectors.  
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| template<class CoordSystem1 , class CoordSystem2 , class U >  | 
| DisplacementVector2D< CoordSystem1, U >  | ROOT::Math::operator- (DisplacementVector2D< CoordSystem1, U > v1, DisplacementVector2D< CoordSystem2, U > const &v2) | 
|   | Difference between two DisplacementVector2D vectors.  
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| template<class char_t , class traits_t , class T , class U >  | 
| std::basic_ostream< char_t, traits_t > &  | ROOT::Math::operator<< (std::basic_ostream< char_t, traits_t > &os, DisplacementVector2D< T, U > const &v) | 
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| template<class char_t , class traits_t , class T , class U >  | 
| std::basic_istream< char_t, traits_t > &  | ROOT::Math::operator>> (std::basic_istream< char_t, traits_t > &is, DisplacementVector2D< T, U > &v) | 
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