MathGroup Archive 2008

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Summation question


Robert Pigeon wrote:
> 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 ?
> 

One of the many possibilities:

Sum[f@Prime[i], {i, 1, 10}]


  • Prev by Date: Re: Summation question
  • Next by Date: Re: Scoping question
  • Previous by thread: Re: Re: Summation question
  • Next by thread: Scoping question