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Re: Domain and range

• To: mathgroup at smc.vnet.net
• Subject: [mg54278] Re: Domain and range
• From: "DJ Craig" <spit at djtricities.com>
• Date: Wed, 16 Feb 2005 14:35:58 -0500 (EST)
• References: <cud82o$33c$1@smc.vnet.net><cuhrlr$9ac$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

How did it simplify that messy function into 2(x-3)?  The graphs don't
even look the same.  What does the Element[] function do?  Reduce[]?