Interesting. You may wonder how a calculation could generate different results when run twice on the same arguments (assuming no obvious flaws such as global va

Interesting. You may wonder how a calculation could generate different results when run twice on the same arguments (assuming no obvious flaws such as global variable usage). I once tracked down such a bug when calculating with bignums in an open source program. I don't remember the details, but it was something to do with garbage collection, perhaps not protecting part of the data from getting collected so that it randomly became corrupt.