Wow -- that's great stuff. I tried it, and it worked a treat. If I
understand correctly, the &. command joins the i. and the (p:^:_1),
which is the inverse of p:. So this command says: apply the inverse
of the prime function to 10000 to find what the order of that prime
is, then iterate up to that number, then get the primes up to that
index. I'm curious -- how is the use of &. better than just writing
out what is needed. As far as I can see these are equivalent:
i.&.(p:^:_1)10000
p:i.(p:^:_1)10000
They take the same number of characters to type, so why is the former
preferred to the latter?
regards,
Geoff
On Mar 4, 2007, at 12:42 AM, Raul Miller wrote:
On 3/4/07, Geoff Canyon <[EMAIL PROTECTED]> wrote:
based on a calculation? For example, suppose I want to generate all
the primes < 10,000.
i.&.(p:^:_1)10000
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