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Manuscript Title: An integral package for one-centre integrals over Slater-Transform- Preuss functions.
Authors: E. Yurtsever
Program title: STP
Catalogue identifier: ACYU_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 16(1978)65
Programming language: Fortran.
Computer: TR 440.
Operating system: BS3.
RAM: 32K words
Word size: 48
Keywords: Atomic physics, Molecular physics, Quantum chemistry, Slater-transform-preuss Function, Two-electron, One-electron, Hypergeometric function, Integral.
Classification: 2.7, 16.10.

Nature of problem:
One-center, one- and two-electron integrals over STP functions are calculated to obtain the atomic wavefunctions to be used in quantum mechanical calculations.

Solution method:
The integrals are evaluated using special and general types of hypergeometric functions or a modified Gauss quadrature is employed.

Restrictions:
To include functions with angular quantum number higher than 2 the appropriate Condon-Shortley coefficients should be added.

Running time:
Compilation time is 10 s, execution times depend on the types of functions used and the number of integrals calculated. A single-zeta type calculation of a second row atom including SCF iterations is 1 s.