Science becomes extra difficult when you have to work with large numbers complex equations or when you need fast calculations. But in the recent years these problems have been considerably reduced thanks to the computers and more specifically thanks to the open-source projects focused on bringing a better understanding and experience at the time of making computations.
As a student of Physics I use several specialized tools and most of them are open source. I am going to share one of them today which is called Elk code an open source project focused on Solid State Physics.
Though it is available in the Ubuntu repositories there are several dependencies you need to explicitly install and configure.
In a few words and thanks to its official page Elk code is an all-electron full-potential linearised augmented-plane wave code with a strong role inside the field of density functional theory.