Declarations required for the calculation of absorption coefficients.
Wigner symbol interactions.
Numeric get_lande_lambda_constant() noexcept
Get the Lande Lambda constant.
Numeric get_lande_spin_constant(const Index species) noexcept
Get the Lande spin constant.
Index species_index_from_species_name(String name)
Return species index for given species name.
Some molecular constants.
NUMERIC Numeric
The type to use for all floating point numbers.
INDEX Index
The type to use for all integer numbers and indices.