I use *. Which returns length/angle. If you only want the angle just drop length.
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Raul Miller Sent: Wednesday, July 27, 2011 10:14 To: Programming forum Subject: [Jprogramming] atan2 google search: site:jsoftware.com atan2 did not find me what I wanted, so here's a definition: atan2=: {:@*.@j.~ See also: http://en.wikipedia.org/wiki/Atan2 FYI, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
