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MathGroup Archive 2008

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Summation question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg85664] Summation question
  • From: Robert Pigeon <robert.pigeon at videotron.ca>
  • Date: Tue, 19 Feb 2008 01:47:46 -0500 (EST)

Good day all,

            I want to make a summation like this:  Sum[f[i],{i, start,
finish}]. What I want is that the sum be over a specific set like
{1,3,5,7,11,13}. So the sum would be : f[1]+f[3]+f[5]+f[7]+f[11]+f[13]. The
set I want to use is the primes. So, how do I use, if possible, Sum over a
specific set ?

 

Thanks,

 

Robert

 

Robert Pigeon



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