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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

• Follow-Ups:
  • Re: Summation question
    • From: Sseziwa Mukasa <mukasa@jeol.com>