[Wien] calculating integration of the 3 spherical harmonics for calculating the charge density (Gaunt coefficients).

check a textbook on angular momenta e.g. the one of Zare or textbooks on atomic physics e.g. Cowan Gerhard Von: wien-bounces at zeus.theochem.tuwien.ac.at [wien-bounces at zeus.theochem.tuwien.ac.at] im Auftrag von fatemeh.mirjani [f_mirjani at

[Wien] calculating integration of the 3 spherical harmonics for calculating the charge density (Gaunt coefficients).

Dear all; I have a question about calculating integration of the 3 spherical harmonics for calculating the charge density (Gaunt coefficients). Which method did you use for this calcultion? and where do I see the subroutine of this calculation in the source of code? I need to calculate this