radial wavefunctions

DFT for an atom

Introduction I have a new project on GitHub1. The project is using Density Functional Theory to do calculations for an atom. The project is actually not so new, I’ve put it on GitHub more than three months ago, but it had some issues I had to solve and also I did not have patience until … Read moreDFT for an atom

H-Kr Cross Section

Quantum Scattering

Introduction I have a project on GitHub about Quantum Scattering1 on a Lennard-Jones potential. The idea is from chapter 2 of a book2 I already mentioned on this blog. For this project I won’t put theory here, but refer you to the book instead. It’s a very good book, it’s worth having. I don’t know … Read moreQuantum Scattering

Competitive Lotka-Volterra


Introduction People never cease to amaze me. By that I mean both laymen and ‘scientists’. I’ve seen many opinions of laymen about some sort of a ‘balance’ existing in all sorts of systems that no knowledgeable individual could claim to be in equilibrium. I’ve seen pretenses that the evil and sinning humans are ‘disrupting’ that … Read moreChaos


Solving Poisson Equation

Introduction When I started this blog I already expected to have projects that use the Fast Fourier Transform. I actually wrote down several topic ideas for the blog, both solving the Poisson equation and the subject this post will lead to were there, too. I already mentioned in the Relaxation Method post that one can … Read moreSolving Poisson Equation

Nuclear Magnetic Resonance and Fourier Transform

Introduction I needed to use Fast Fourier Transform for a project that I’ll implement (hopefully) for this blog. Something quite different from the theme of this post, but I won’t reveal it. Depending on my free time and mood, I might have it working in a week or I might even drop it. I do … Read moreNuclear Magnetic Resonance and Fourier Transform