The potential energy integrals are reduced to quadratures and the other integrals are expressed in closed form. In the general case the quadratic forms Qk determine many-electron functions formed from ...

This paper provides a numerical technique for determining the parameters in a model expressible as the sum of exponentials. The essence of the method is to rewrite the model so that after ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...