A recent paper compares density functional theory results for atomization energies and dipole moments using a multi-wavelet based method with traditional Gaussian basis set results, and concludes that Gaussian basis sets are problematic for achieving high accuracy. We show that by a proper choice of Gaussian basis sets they are capable of achieving essentially the same accuracy as the multi-wavelet approach, and identify a couple of possible problems in the multi-wavelet calculations.
@article{arxiv.1704.08832,
title = {How Large is the Elephant in the Density Functional Theory Room?},
author = {Frank Jensen},
journal= {arXiv preprint arXiv:1704.08832},
year = {2017}
}