iOS where is the arctan function?

[beardedpig]

I have tried to find this in the Documentation but no entries are returned. I have also searched the web and forms and can find what arctan is but not where it is.

Is there another help file in Xcode I need to search?

Thanks

 

[kainjow]

Try atan() from <math.h>

 

[beardedpig]

Ta muchly