Storing previously debugged version

Samo Penic

2020-04-13 2a1e3d528265c3d366dab9ad4b0c4d3d65e1c4ed

1
Original written by Dan Kroll in FORTRAN. Code was then largely adapted and commented by Miha Fosnaric-Fosni. Rewritten into C by Samo Penic-Peni, with help of Miha's extensive explanations.