  Simplified Hartree-Fock computations are carried out on the atoms He through
Ne, using orthonormalized basis functions for the 1s, 2s and 2p orbitals
dependent on three parameters. Using Mathematica with the new Apple M1 chip,
computations require about 0.005 seconds of CPU time. Approximate energies
within 1% of the best H-F values are thereby obtained, with an order of
magnitude less computational effort.
