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[Octave-bug-tracker] [bug #37379] atan2 and other trig functions lack do

From: Michael Godfrey
Subject: [Octave-bug-tracker] [bug #37379] atan2 and other trig functions lack documentation
Date: Tue, 25 Sep 2012 21:46:08 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20100101 Firefox/15.0.1 
Follow-up Comment #3, bug #37379 (project octave):

Oops, 2 typos:

— atan2(y, ±0) returns -pi/2 for y < 0. both -pi/2 *
— atan2(y, ±0) returns pi/2 for y > 0. both pi/2 * 

should be:
— atan2(y, ±0) returns -pi/2 for y < 0. both -pi/2 
— atan2(y, ±0) returns pi/2 for y > 0. both pi/2 

It appears that Matlab does not recognize -0.
Someone might check this with newer Matlabs.


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