This is a very old article. It has been imported from older blogging software, and the formatting, images, etc may have been lost. Some links may be broken. Some of the information may no longer be correct. Opinions expressed in this article may no longer be held.
Did you know that 22/7 is actually a better approximation of pi than 3.14 is?
use DateTime;
use Math::Trig qw(pi);
use Test::More tests => 1;
my $today = DateTime::->now;
my $dm = sprintf '%d/%d' => ($today->day, $today->month);
cmp_ok(
abs( eval($dm) - pi ),
'<',
0.0015,
)
or diag("this test only passes on 22/7")
