kronecker.hpp

#include <nda/clef.hpp>
#include <type_traits>

Detailed Description

Kronecker delta \( \delta_{ij} \) for arithmetic types, with a CLEF lazy-expression hook.

Definition in file kronecker.hpp.

Go to the source code of this file.

Functions
template<typename T1, typename T2> requires (std::is_arithmetic_v<T1> and std::is_arithmetic_v<T2>)
bool	nda::clef::kronecker (T1 i, T2 j)
	Kronecker delta \( \delta_{ij} \).
template<typename T1, typename T2> requires (std::is_arithmetic_v<T1> and std::is_arithmetic_v<T2>)
bool	triqs::utility::kronecker (T1 i, T2 j)
	Kronecker delta \( \delta_{ij} \).

Function Documentation

kronecker()

template<typename T1, typename T2>
requires (std::is_arithmetic_v<T1> and std::is_arithmetic_v<T2>)

bool triqs::utility::kronecker ( T1 i, T2 j )

inline

Kronecker delta \( \delta_{ij} \).

Template Parameters

T1	Arithmetic type of the first index.
T2	Arithmetic type of the second index.

Parameters

i	Index \( i \).
j	Index \( j \).

Returns

True if the given indices are equal, false otherwise.

Definition at line 45 of file kronecker.hpp.