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ABSTRACT
This article describes ISNAP, a program for calculating atomic properties that uses an integrated symbolic and numerical approach for arbitrary excitations from closed-shell atoms. This program generates transition matrix elements and energy formulas up to third-order perturbation via the symbolic programming language Mathematica.
INDEX TERMS
Symbolic computation, quantum mechanics, many-body perturbation theory
CITATION

M. I. Bhatti, W. F. Perger, K. Flurchick and M. Xia, "Integrating Symbolic and Numeric Techniques in Atomic Physics," in Computing in Science & Engineering, vol. 3, no. , pp. 38-47, 2001.
doi:10.1109/5992.895186
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