Yakar, YusufOezmen, AyhanCakir, BekirYueksel, Hueseyin2020-03-262020-03-2620070009-4536https://dx.doi.org/10.1002/jccs.200700163https://hdl.handle.net/20.500.12395/21285Rotation matrices were expressed in terms of Gaunt coefficients and complex spherical harmonics. The rotation matrices were calculated using two different ways. In the first, Gaunt coefficients and normalized complex spherical harmonics were directly calculated using binomial coefficients; in the second, Gaunt coefficients and complex spherical harmonics were recursively calculated. The methods were compared with respect to accuracy and computation time (CPU) for low and very high quantum numbers.en10.1002/jccs.200700163info:eu-repo/semantics/closedAccessrotation matricesgaunt coefficientsspherical harmonicsbinomial coefficientsArticle54511391144Q3WOS:000251838500006Q3