Methods for evaluating the function F m ( t ) occurring in molecular integrals over Gaussian‐type orbitals are reviewed and extended. Formulas based on Bessel function and continued‐fraction expansions are analyzed. The recommended evaluation procedures, embodied in a portable computer program, involve Padé approximations for various argument intervals and use recursion in m . The program is economical in storage requirements and faster than those in current use.
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Frank E. Harris (1983) studied this question.
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