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FunctionQ?

• To: mathgroup at smc.vnet.net
• Subject: [mg113288] FunctionQ?
• From: Sam Takoy <sam.takoy at yahoo.com>
• Date: Fri, 22 Oct 2010 01:35:38 -0400 (EDT)

Hi,

How does one tell whether a variable is a function?
More specifically, how does one tell whether a variable is a function of 
two arguments?
Finally, how does one tell whether a variable is a function of two 
arguments that returns an array?

Many thanks in advance,

Sam