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MathGroup Archive 2004

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Re: Min[], Max[]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg48341] Re: Min[], Max[]
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 25 May 2004 07:17:04 -0400 (EDT)
  • Organization: Universitaet Leipzig
  • References: <c8rutb$8nl$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

if you set up a recursive definition of Max[]

max[{}] := -Infinity
max[{a_, rest___}] := Module[{mr}, mr = Max[{rest}]; If[a > mr, a, mr]]


you see why the definition is usefull.

Regards
  Jens


Frank Brand wrote:
> 
> Dear newsgroup members,
> 
> can anyone explain me what´s the sense in the definition of
> 
> Min[{}]= Infinity and Max[{}]= -Infinity
> 
> Thanks in advance
> Frank
> 
> Prof. Dr. Frank Brand
> Budapester Str. 13
> 10787 Berlin
> 
> +49 (0)30 - 25 79 36 62
> 0179 - 215 58 04
> 
> frank.brand at t-online.de


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