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Defining a function in module problem?

• To: mathgroup at smc.vnet.net
• Subject: [mg45975] Defining a function in module problem?
• From: jflanigan at netzero.net (jose flanigan)
• Date: Sat, 31 Jan 2004 05:20:40 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

why does this

a[x_] := Module[{f, g}, g = z/3; f = Function[z, Evaluate[g]]; f[x]]

produce

a[1] = z/3

instead of

a[1]=1/3

I don't understand the philosophy here.

thanks in advance.