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README.md

HelFEM -- Helsinki Finite Element Suite for atoms and diatomic molecules

HelFEM is a suite of programs for finite element calculations on atoms and diatomic molecules at the Hartree-Fock or density-functional levels of theory. Hundreds of functionals at the local spin density approximation (LDA), generalized gradient approximation (GGA), and meta-GGA levels of theory are supported.

The program has been described in the following three articles:

The program can also be used to form starting potentials for molecular electronic structure calculations with the superposition of atomic potentials method described in J. Chem. Theory Comput. 15, 1593 (2019), as discussed in J. Chem. Phys. 152, 144105 (2020).

Compilation is straightforward with CMake. To compile, you have to set some variables in CMake.system, such as the directories where the Armadillo headers, and libxc headers and libraries reside, and how to link against LAPACK.

Susi Lehtola 2018-10-24

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Finite element methods for electronic structure calculations on small systems

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