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DM 42
05-25-2017, 11:31 AM
Post: #36
RE: DM 42
(05-25-2017 04:50 AM)Ángel Martin Wrote:  
(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?

Got 'em -- Thanks!

This issue is unrelated, though. The complex atanh code (which is also used for complex atan) is correct, but a bit inaccurate when the real part (imaginary part for atan) is too close to zero. I'll have to make it handle that as a special case.
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Messages In This Thread
DM 42 - Geoff Quickfall - 05-19-2017, 05:21 PM
RE: DM 42 - Dave Frederickson - 05-19-2017, 05:29 PM
RE: DM 42 - Dave Frederickson - 05-26-2017, 08:32 PM
RE: DM 42 - Massimo Gnerucci - 05-19-2017, 05:30 PM
RE: DM 42 - Ángel Martin - 05-19-2017, 05:53 PM
RE: DM 42 - Massimo Gnerucci - 05-19-2017, 06:08 PM
RE: DM 42 - Dan B - 05-19-2017, 08:58 PM
RE: DM 42 - Geoff Quickfall - 05-19-2017, 09:30 PM
RE: DM 42 - Luigi Vampa - 05-19-2017, 09:38 PM
RE: DM 42 - Namir - 05-20-2017, 01:07 AM
RE: DM 42 - 48GX - 05-24-2017, 11:37 AM
RE: DM 42 - Dave Britten - 05-24-2017, 01:27 PM
RE: DM 42 - matthiaspaul - 05-25-2017, 09:09 PM
RE: DM 42 - matthiaspaul - 05-26-2017, 12:18 AM
RE: DM 42 - matthiaspaul - 05-29-2017, 11:26 PM
RE: DM 42 - 48GX - 05-30-2017, 12:37 AM
RE: DM 42 - rprosperi - 05-30-2017, 02:21 AM
RE: DM 42 - grsbanks - 05-30-2017, 10:31 AM
RE: DM 42 - Logan - 05-24-2017, 11:38 AM
RE: DM 42 - HP-Collection - 05-24-2017, 12:15 PM
RE: DM 42 - Dave Frederickson - 05-24-2017, 03:58 PM
RE: DM 42 - Guenter Schink - 05-24-2017, 01:53 PM
RE: DM 42 - Ángel Martin - 05-26-2017, 01:36 PM
RE: DM 42 - Thomas Okken - 05-26-2017, 04:30 PM
RE: DM 42 - Guenter Schink - 05-26-2017, 04:53 PM
RE: DM 42 - Ángel Martin - 05-27-2017, 05:27 AM
RE: DM 42 - Logan - 05-24-2017, 04:32 PM
RE: DM 42 - Ángel Martin - 05-24-2017, 04:44 PM
RE: DM 42 - Vtile - 05-24-2017, 05:34 PM
RE: DM 42 - Guenter Schink - 05-24-2017, 06:42 PM
RE: DM 42 - Ángel Martin - 05-24-2017, 06:48 PM
RE: DM 42 - Vtile - 05-24-2017, 07:58 PM
RE: DM 42 - Thomas Okken - 05-24-2017, 11:25 PM
RE: DM 42 - Ángel Martin - 05-25-2017, 04:50 AM
RE: DM 42 - Thomas Okken - 05-25-2017 11:31 AM
RE: DM 42 - Ángel Martin - 05-25-2017, 04:35 PM
RE: DM 42 - Thomas Okken - 05-25-2017, 06:16 PM
RE: DM 42 - matthiaspaul - 05-26-2017, 11:38 AM
RE: DM 42 - Hsilop - 05-24-2017, 08:25 PM
RE: DM 42 - Logan - 05-24-2017, 08:29 PM
RE: DM 42 - Vtile - 05-24-2017, 08:30 PM
RE: DM 42 - Hsilop - 05-24-2017, 09:05 PM
RE: DM 42 - Vtile - 05-24-2017, 09:08 PM
RE: DM 42 - Logan - 05-24-2017, 09:09 PM
RE: DM 42 - Vtile - 05-24-2017, 09:11 PM
RE: DM 42 - Paul Dale - 05-25-2017, 12:59 AM
RE: DM 42 - Thomas Okken - 05-25-2017, 02:13 AM
RE: DM 42 - Guenter Schink - 05-25-2017, 09:52 AM
RE: DM 42 - Paul Dale - 05-25-2017, 11:11 AM
RE: DM 42 - Ángel Martin - 05-25-2017, 04:31 PM
RE: DM 42 - toml_12953 - 05-25-2017, 05:15 PM
RE: DM 42 - Thomas Okken - 05-25-2017, 06:21 PM
RE: DM 42 - Paul Dale - 05-26-2017, 12:05 AM
RE: DM 42 - toml_12953 - 05-26-2017, 01:37 AM
RE: DM 42 - pier4r - 05-25-2017, 08:03 PM
RE: DM 42 - Thomas Okken - 05-25-2017, 10:57 PM
RE: DM 42 - Paul Dale - 05-26-2017, 03:51 AM
RE: DM 42 - Ángel Martin - 05-26-2017, 05:33 AM
RE: DM 42 - Thomas Okken - 05-26-2017, 07:24 AM
RE: DM 42 - toml_12953 - 05-26-2017, 07:41 AM
RE: DM 42 - toml_12953 - 05-26-2017, 07:33 AM
RE: DM 42 - Paul Dale - 05-26-2017, 07:34 AM
RE: DM 42 - toml_12953 - 05-26-2017, 12:52 PM
RE: DM 42 - Thomas Okken - 05-26-2017, 04:36 PM
RE: DM 42 - toml_12953 - 05-26-2017, 07:37 PM
RE: DM 42 - AlexFekken - 05-26-2017, 10:24 AM
RE: DM 42 - Ángel Martin - 05-26-2017, 12:19 PM
RE: DM 42 - jch - 05-26-2017, 01:17 PM
RE: DM 42 - Thomas Okken - 05-28-2017, 08:57 PM
RE: DM 42 - rprosperi - 05-28-2017, 09:09 PM
RE: DM 42 - Thomas Okken - 05-28-2017, 09:47 PM
RE: DM 42 - rprosperi - 05-28-2017, 10:04 PM
RE: DM 42 - Thomas Okken - 05-28-2017, 10:24 PM
RE: DM 42 - rprosperi - 05-29-2017, 12:10 AM
RE: DM 42 - Thomas Okken - 05-29-2017, 01:30 AM
RE: DM 42 - rprosperi - 05-29-2017, 02:12 AM
RE: DM 42 - Massimo Gnerucci - 05-26-2017, 06:16 PM
RE: DM 42 - pier4r - 05-26-2017, 06:24 PM
RE: DM 42 - Thomas Okken - 05-26-2017, 06:56 PM
RE: DM 42 - Geoff Quickfall - 05-26-2017, 08:59 PM
RE: DM 42 - Dave Frederickson - 05-26-2017, 09:22 PM
RE: DM 42 - Geoff Quickfall - 05-26-2017, 09:44 PM
RE: DM 42 - matthiaspaul - 05-30-2017, 10:45 AM
RE: DM 42 - Massimo Gnerucci - 05-30-2017, 11:37 AM
RE: DM 42 - Guenter Schink - 05-30-2017, 12:24 PM
RE: DM 42 - Thomas Okken - 05-30-2017, 12:50 PM
RE: DM 42 - Ángel Martin - 05-30-2017, 04:44 PM
RE: DM 42 - Guenter Schink - 05-30-2017, 06:48 PM
RE: DM 42 - Ángel Martin - 05-30-2017, 07:47 PM
RE: DM 42 - David Hayden - 02-10-2018, 08:51 PM
RE: DM 42 - Logan - 02-10-2018, 09:47 PM
RE: DM 42 - Guenter Schink - 02-10-2018, 11:18 PM



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