ACOS logarithmic form
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04-28-2016, 08:29 PM
(This post was last modified: 04-28-2016 08:32 PM by Claudio L..)
Post: #7
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RE: ACOS logarithmic form
(04-28-2016 06:42 PM)Ángel Martin Wrote: It's commonly accepted to define as "principal" branch the solution with argument between -pi and pi. This is covered with good explanations in the 15C Special Functions Manual, I'm sure somebody here will be able to point at its URL... I know it might seem trivial, but once you get into the subject in depth it's a mess. Each transcendental function has its own weird branch cuts, not so trivial as you can see here. EDIT: What you mentioned works for ln() and sqrt(), acos() is a different animal. |
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