       Periodic functions & attributes

• To: mathgroup at smc.vnet.net
• Subject: [mg53788] Periodic functions & attributes
• From: "Scout" <user at domain.com>
• Date: Thu, 27 Jan 2005 05:41:28 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

```Hi all!

2 questions:

1)     How can I declare a periodic function?
That is of the type f[x+T] = f[x] for  x in Real.
I want to be able to simplify integral of the type:
Integrated [f[x], {x, h_Integer * T, k_Integer * T}] = (k-h) * Integrated
[f[x], {x, 0, T}]

Writing:
setPeriodicFunction /:
Integrated [
setPeriodicFunction[f_Function, T_], {x_Symbol, h_Integer.T,
k_Integer.T}] := (k - h)Integrate[f, {x, 0, T}];

I don't get a lot!

2)     Can I define my own attributes that can be assigned to symbol f
(functions,...)? As for instance: Flat,Listable,ecc.

Thanks a lot!
~Scout~

```

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