|Bill Allombert on Sun, 14 Oct 2012 22:36:59 +0200|
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|Re: iterators, sums and products|
On Thu, Oct 11, 2012 at 10:14:17PM +0200, Loïc Grenié wrote: > Hi pari developers, > > what do you think of the following idea ? Does it look interesting > and feasible ? > > We have a forprime iterator. I've always wished I could sum over > primes. > > My idea is to introduce a new pari type t_ITERATOR which > could wrap some iterators (forprime, forsubgroup, forell, etc). For each > iterator there would be an initializer. There would also be some > users of those iterators: foriter, sumiter, proditer and (why not) > vectoriter. Usage: I miss two things: sumprime() and a function that return the sum of the element of a vector. Cheers, Bill.