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Apply and Heads option

• To: mathgroup at smc.vnet.net
• Subject: [mg35213] Apply and Heads option
• From: "Ersek, Ted R" <ErsekTR at navair.navy.mil>
• Date: Tue, 2 Jul 2002 02:12:37 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Hello mathgroup, 
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Apply has the Heads option.  
Can somebody give an example where 
Apply[f, expr, Heads->True]   gives a different result than 
Apply[f, expr, Heads->False].

OR where 

Apply[f, expr, levelspec, Heads->True]   gives a different result than 
Apply[f, expr, levelspec, Heads->False].

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Thanks,
   Ted Ersek