About function middle using primitive recursion

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#192

From: Octavio Juarez Espinosa
Date: Wed, 02 Sep 1992 15:38

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Hi,

I am very interested in to receive some version for funtion middle.

(middle list)  return nil if is even number of elements.
		return the element if is odd the number of elements

Constrains:
Only one recursion call and only with the CRD of argument.

Thanks in advance.

Sincerely,

Octavio Juarez Espinosa.
ojuarez@mtecv2.mty.itesm.mx

-- 
Octavio Juarez Espinosa
Gabriel Valerio 1134 
Saltillo, Coahuila    CP 25000
Mexico  email ojuarez@mtecv2.mty.itesm.mx

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Path: arc1-ca.pugleaf.net!sparky!uunet!sun-barr!cs.utexas.edu!tamsun.tamu.edu!mtecv2!ojuarez
From: ojuarez@mtecv2.mty.itesm.mx (Octavio Juarez Espinosa)
Newsgroups: comp.lang.functional
Subject: About function middle using primitive recursion
Summary: help
Keywords: help
Message-ID: <6006@mtecv2.mty.itesm.mx>
Date: 2 Sep 92 15:38:31 GMT
Organization: I.T.E.S.M. Campus Monterrey
Lines: 24