Why do I not have to use "use Math::Trig" for atan2 and the like?...

Ambiguous call resolved as CORE::join(), qualify as such or use & at...

Perl "do", with relative path beginning with "." or ".."...

Perl : IO::Uncompress::Unzip : getting last modified date of file inside zip...

Perl timezone conversion - but only using core modules...

How do I tell from a module’s CPAN page whether it is in the core distribution?...

Is it possible to symbolically reference a Perl core module?...

How do I check bug history on a module in the Perl core?...

How are Perl's core libraries managed?...