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| From: | anonymous |
| Subject: | [Octave-bug-tracker] [bug #60055] regarding to bug #15872: atanh branch cut strangeness |
| Date: | Sun, 14 Feb 2021 17:20:27 -0500 (EST) |
| User-agent: | Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0 |
Follow-up Comment #1, bug #60055 (project octave):
https://en.wikipedia.org/wiki/List_of_logarithmic_identities#Using_simpler_operations
log(a/b)=log(a)-log(b)
https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Inverse_hyperbolic_tangent
The domain is the open interval (−1, 1).
What value are you expecting for atanh(3)?
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