But 1 is the wrong answer ass a mathematician in the real world for the answer for an inverse!
4*inv 7 1.75 4 * inv 7 1.75 4%7 0.571429 7%4 1.75 4 + inv 7 3 4-7 _3 7-4 3 Linda -----Original Message----- From: programming-boun...@forums.jsoftware.com [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Don Guinn Sent: Thursday, January 8, 2015 12:06 PM To: Programming forum Subject: Re: [Jprogramming] A striggle with "inverse" Obverse/inverse applies to the monadic use of a verb. So, + b._1 NB. Conjugate + - b._1 NB. Negation - * b._1 NB. Signum. Cannot undo this. |domain error | *b._1 % b._1 NB. Inverse % When applied to a dyadic use it is interpreted as the left argument bound to the verb making a monadic verb. 3+inv 4 1 (3&+)b._1 _3&+ ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
