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T O P I C R E V I E W
Estitxu	Posted - 12/04/2013 : 09:06:11 AM Hello! How can I define an inverse trigonometric function (when fitting or when plotting some function in a graph) in Origin 8? Thanks!
2 L A T E S T R E P L I E S (Newest First)
Drbobshepherd	Posted - 12/04/2013 : 09:31:53 AM I'm confused. Isn't acos already defined as a trig function in Origin8? Now I would understand your problem with atan. The user often needs to use atan2 instead of atan to execute an inverse tangent operation; in Origin8, this function is called angle. It wasn't until Origin 9.1 that atan2 was added. DrBob
Estitxu	Posted - 12/04/2013 : 09:09:34 AM Actualy I'm interested in defining an arc cosine! Thanks again!

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