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[Octave-bug-tracker] [bug #45507] acos returns different results on big


From: Marco Caliari
Subject: [Octave-bug-tracker] [bug #45507] acos returns different results on big input values
Date: Tue, 14 Jun 2016 06:27:31 +0000 (UTC)
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0

Follow-up Comment #27, bug #45507 (project octave):

Hi Mike,

from the definition here

http://it.mathworks.com/help/matlab/ref/acos.html

isn't it just negative imaginary part if abs(z)>1, z<0 and positive imaginary
part if abs(z)>1, z>0?

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