diagonal

Header: <pressio/expressions.hpp>

API

namespace pressio {

template<class T>
/*impl defined*/ diagonal(T & operand);

} // end namespace pressio

Description

• Takes in an operand that is either:

  • a square Eigen dense matrix, pressio::is_dense_matrix_eigen<T>::value == true

  • a square Kokkos rank-2 view, i.e. pressio::is_dense_matrix_kokkos<T>::value == true

• Returns an expression that represents that diagonal of operand