Computational Plasma Physics Course Repo
http://www-m16.ma.tum.de/foswiki/pub/M16/Allgemeines/CompPlasmaPhys18/CompPlasmaPhys17.pdf
CPP/EX1: 1D Poisson solver with finite differences.
http://www-m16.ma.tum.de/foswiki/pub/M16/Allgemeines/CompPlasmaPhys18/exercise01.pdf