Evaluation giving NaN

[neheller]

Discussion moved here from this Discourse comment.

[Willzy-x]

I have read some similar issues on the Internet. It seems that the numbers are too big and their accuracy needs to be confined. https://stackoverflow.com/questions/34709576/runtimewarning-invalid-value-encountered-in-long-scalars My program is rather complicated and runs very slowly, I'll try to get a full stack trace.