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MathGroup Archive 2003

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Re: Summations with Primes

  • To: mathgroup at
  • Subject: [mg39961] Re: [mg39932] Summations with Primes
  • From: Sseziwa Mukasa <mukasa at>
  • Date: Thu, 13 Mar 2003 03:02:44 -0500 (EST)
  • Sender: owner-wri-mathgroup at

On Wednesday, March 12, 2003, at 02:29 AM, Anthony Felder wrote:

> Can you tell me if, when calculating a summation of f(i) where i goes 
> from
> imin to imax, Mathematica can be forced to only use prime values for i?
> Thank you for your time
> Anthony Felder

Two options:

This function returns the number of primes including the smallest prime 
greater than or equal to n.


You can use it to compute the sum as follows


or you can simply check if i is prime




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