CDPL::Math::VectorNorm2< V > Struct Template Reference

Functor returning the L2 (Euclidean) norm of a vector expression. More...

#include <Functional.hpp>

Inheritance diagram for CDPL::Math::VectorNorm2< V >:

Public Types
typedef VectorScalarRealUnaryFunctor< V >::ValueType	ValueType
typedef VectorScalarRealUnaryFunctor< V >::RealType	RealType
typedef VectorScalarRealUnaryFunctor< V >::ResultType	ResultType
Public Types inherited from CDPL::Math::VectorScalarRealUnaryFunctor< V >
typedef V::ValueType	ValueType
	The vector's element value type. More...
typedef TypeTraits< ValueType >::RealType	RealType
	The real-valued type derived from ValueType via Math::TypeTraits. More...
typedef RealType	ResultType
	The real-valued result type. More...

Static Public Member Functions
static ResultType	apply (const VectorExpression< V > &e)
	Returns the L2 norm of e. More...

Detailed Description

template<typename V>
struct CDPL::Math::VectorNorm2< V >

Functor returning the L2 (Euclidean) norm of a vector expression.

Template Parameters

V	The vector expression type.

Member Typedef Documentation

ValueType

template<typename V >

typedef VectorScalarRealUnaryFunctor<V>::ValueType CDPL::Math::VectorNorm2< V >::ValueType

RealType

template<typename V >

typedef VectorScalarRealUnaryFunctor<V>::RealType CDPL::Math::VectorNorm2< V >::RealType

ResultType

template<typename V >

typedef VectorScalarRealUnaryFunctor<V>::ResultType CDPL::Math::VectorNorm2< V >::ResultType

Member Function Documentation

apply()

template<typename V >

static ResultType CDPL::Math::VectorNorm2< V >::apply ( const VectorExpression< V > &  e )

inlinestatic

Returns the L2 norm of e.

Parameters

e	The vector expression.

Returns

\( \sqrt{\sum_i \|e(i)\|_2^2} \).

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The documentation for this struct was generated from the following file:

• Functional.hpp