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MathGroup Archive 2007

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Re: How to express continued sum?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg73449] Re: How to express continued sum?
  • From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
  • Date: Fri, 16 Feb 2007 05:23:21 -0500 (EST)
  • Organization: The Open University, Milton Keynes, UK
  • References: <er3hbm$f9e$1@smc.vnet.net>

oicqgogogo at sina.com wrote:
> I want to know how to get the continued sum expression by mathematica?
> Such
> as:
> sigma(x=0..20)sigma(y=0..20)sigma(z=0..20)f(x,y,z)
> 
> Thanks!
> 
> 

In Mathematica syntax this is

Sum[f[x, y, z], {x, 0, 20}, {y, 0, 20}, {z, 0, 20}]

See http://documents.wolfram.com/mathematica/functions/Sum

Regards,
Jean-Marc


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