(a-b)/(c-d)=!=(b-a)/(d-c) ???

*To*: mathgroup at smc.vnet.net*Subject*: [mg12964] (a-b)/(c-d)=!=(b-a)/(d-c) ???*From*: tdelling at ews.uiuc.edu (Tim Dellinger)*Date*: Sun, 28 Jun 1998 02:51:53 -0400*Organization*: University of Illinois at Urbana-Champaign*Sender*: owner-wri-mathgroup at wolfram.com

How come (a-b)/(c-d) === (b-a)/(d-c) returns False, i.e. TrueQ[ (a-b)/(c-d) =!= (b-a)/(d-c) ] returns True, but (a-b)/(c-d) === Simplify[ (b-a)/(d-c) ] returns True ??? Why does mere simplification change anything? I'm using Mathematica 3.0.? on win95. -- -- "Perhaps my most deeply rooted hobby is to understand Tim Dellinger the mechanisms of simple and familiar tdelling at uiuc.edu natural phenomena." Irving Langmuir http://www.ews.uiuc.edu/~tdelling

**Follow-Ups**:**Re: (a-b)/(c-d)=!=(b-a)/(d-c) ???***From:*Sean Ross <seanross@worldnet.att.net>