Re: equaltity of lists
- To: mathgroup at smc.vnet.net
- Subject: [mg19067] Re: equaltity of lists
- From: adam.smith at hillsdale.edu
- Date: Thu, 5 Aug 1999 01:34:54 -0400
- Organization: Deja.com - Share what you know. Learn what you don't.
- References: <7o5ih1$rml@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Drago Try using the triple equal === (SameQ). There are subtle differences between the == (Equal) and the === and I can not explain exactly what they are. But in this case == fails because it does not "know" what the values of a and b are. So it just returns the original input which is Mathematica's way of telling you it can not do this. However === seems to do some things with pattern matching and returns the value False. Adam Smith In article <7o5ih1$rml at smc.vnet.net>, "Drago Ganic" <drago.ganic at in2.hr> wrote: > Hi !! > > Why don't I get an answer (False) when I ask Mathematica > > {a,b}=={b,a} > > like the one I get with > > {1,2}=={2,1} > False > > Greetings from Croatia, > Drago Ganic > > Sent via Deja.com http://www.deja.com/ Share what you know. Learn what you don't.