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

Functor producing the diagonal-matrix entry at (i, j) from a vector expression ( \( e(i) \) on the diagonal, 0 elsewhere). More...

#include <Functional.hpp>

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

Public Types
typedef VectorScalarUnaryFunctor< V >::ResultType	ResultType
typedef VectorScalarUnaryFunctor< V >::SizeType	SizeType
Public Types inherited from CDPL::Math::VectorMatrixUnaryFunctor< V >
typedef V::ValueType	ResultType
	The matrix-entry result type (the vector's element value type). More...
typedef V::SizeType	SizeType
	The unsigned size type used by the vector. More...

Static Public Member Functions
template<typename E >
static ResultType	apply (const VectorExpression< E > &e, SizeType i, SizeType j)
	Returns \( e(i) \) if i equals j, otherwise 0. More...

Detailed Description

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

Functor producing the diagonal-matrix entry at (i, j) from a vector expression ( \( e(i) \) on the diagonal, 0 elsewhere).

Template Parameters

V	The vector expression type.

Member Typedef Documentation

ResultType

template<typename V >

typedef VectorScalarUnaryFunctor<V>::ResultType CDPL::Math::DiagonalMatrixFromVector< V >::ResultType

SizeType

template<typename V >

typedef VectorScalarUnaryFunctor<V>::SizeType CDPL::Math::DiagonalMatrixFromVector< V >::SizeType

Member Function Documentation

apply()

template<typename V >

template<typename E >

static ResultType CDPL::Math::DiagonalMatrixFromVector< V >::apply ( const VectorExpression< E > &  e, SizeType  i, SizeType  j  )

inlinestatic

Returns \( e(i) \) if i equals j, otherwise 0.

Template Parameters

E	The vector expression type.

Parameters

e	The vector expression.
i	The zero-based row index.
j	The zero-based column index.

Returns

The diagonal-matrix entry.

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

• Functional.hpp