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Re: How to tell Mathematica to stop conditional testing in an If statment if one condition is niether True or False? McCarthy evaluation rules? 'and then' test?

• To: mathgroup at smc.vnet.net
• Subject: [mg69585] Re: How to tell Mathematica to stop conditional testing in an If statment if one condition is niether True or False? McCarthy evaluation rules? 'and then' test?
• From: Oliver Friedrich <xoliver.friedrich at tzm.dex>
• Date: Sat, 16 Sep 2006 03:50:26 -0400 (EDT)
• References: <eebfu3$5dt$1@smc.vnet.net>

"Nasser Abbasi" <nma at 12000.org> wrote in news:eebfu3$5dt$1
@smc.vnet.net:

> I can better describe this with simple example:
> 
> ------------- code ------------
> 
> Remove["Global`*"];
> xc = Table[i, {i, 1, 3}]
> x = 5;
> If[x == b && xc[[10]] == 4, Print["True"], Print
["False"],
> Print["Can't decide"]]
> 
Hallo Nasser,

you could nest two If[] expressions like this:

If[x==b,
    	If[xc[[10]]==4,
    	    	Print["True"],
    	    	Print["False"],
    	    	Print"Can't decide"]],
    	Print["False"],
    	Print["Can't decide"]]

Regards
Oli


-- 
Regards

Oliver Friedrich

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