So I figured out from folks on the list, Beginning
Perl, and some print statements that
@list = (2 .. $input);
puts the range of numbers into an array, and that if I
stringified it, then it would put the entire range
into $list[0]
Now that I've figured that bit out, I went on to
remove all the even numbers from the list. I got that
done with this:
foreach (@list)
{
if ($_ % 2 != 0)
{
unshift(@primelist, $_);
@primelist\n";
}
}
Now what I'd like to do to test whether or not I have
a prime number is to get at each element in
@primelist, and use the modulus operator on each
element against each element in @list. For example:
$primelist[0] % $list[0]
$primelist[0] % $list[1]
$primelist[0] % $list[2]
$primelist[1] % $list[0]
$primelist[1] % $list[1]
$primelist[1] % $list[2]
$primelist[2] % $list[0]
$primelist[2] % $list[1]
$primelist[2] % $list[2]
and if the result doesn't equal 0 for every test
except for against itself, then I want to unshift it
onto @primelist.
I thought I'd do this with nested foreach loops, but
that didn't seem to work. Any ideas?
Thanks.
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