wavefunction91 / IntegratorXX

Reusable DFT Grids for the Masses
BSD 3-Clause "New" or "Revised" License
13 stars 9 forks source link

Add Gauss-Chebyshev Variant of Mura-Knowles Quadrature #51

Open wavefunction91 opened 1 year ago

wavefunction91 commented 1 year ago

Per discussion in https://github.com/wavefunction91/IntegratorXX/pull/27#discussion_r1257964596, the "canonical" implementation of the MK quadrature uses a Uniform Trapezoid base quadrature. However Lehtola, Marques J. Chem. Phys. 157, 174114 (2022) points out that accuracy of this scheme can be improved via using Gauss-Chebyshev (second kind) as the base quadrature.