Runge Kutta 4 method (RK4), solves a system of 2 differential equations. Uses the 3/8th formula.
All the comments inside, as well as the documentation is in Polish. Variable names are in English, so the main concept is easily understandable without any Polish langauge knowledge.
This project is a task for Numeric Methods 2 on the MiNI faculty at WUT.
The author of this script is Grzegorz Rozdzialik.