openSUSE:12.1
openSUSE 12.1
https://download.opensuse.org/distribution/12.1/repo/oss/

perlTestNumberDelta
Compare the difference between numbers against a given tolerance
At some point or another, most programmers find they need to compare
floatingpoint numbers for equality. The typical idiom is to test if the
absolute value of the difference of the numbers is within a desired tolerance,
usually called epsilon. This module provides such a function for use with
Test::Harness. Usage is similar to other test functions described in
Test::More.