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On Fri, Jan 21, 2011 at 12:59 PM, Joseph Manning <> wrote:
> I simply meant to convey that the overall Sieve of Eratosthenes program
> will be faster if the above loop starts at  k*k  rather than at  k*2 ,
> since it will have fewer iterations to go through.

ah, right.  it was an algorithmic optimization rather than a mechanical one.

i didn't bother to analyze the code; but i certainly found weird to
see 'k*2', since most prime-related algorithms have 'k^2'. (or sqr(x))