DM 42

[Ángel Martin]

(05-24-2017 11:25 PM)Thomas Okken Wrote:  That sounds like a Free42 bug, or maybe an edge case in the Intel library that Free42 should work around. If I fixed this eight years ago and now it is broken again, that could be because that fix was specific to the BCD20 library that I used back then; I switched to the Intel library three years ago.

Ángel, do you remember when I made this earlier change? What date or at which version number?
If you don't, it's not a big deal, I can do a binary search through my revision history, but I'd rather not if I don't have to. :-)

Anyway, I'll look into it this weekend.

Yes I still have the emails from 2011 (so only 6 years ago, not 8 - I'm an outlook pack-rat) - will forward them to you in a moment.
BTW while re-reading that thread I realized the issue back then wasn't exactly in ATAN - but in ASIN. Still entirely within the same functionality area... I guess involving those pesky square root branches and principal values?