libmath-complex-perl 1.58-1 (i386 binary) in ubuntu quantal

 Math::Complex is a Perl library letting you create and manipulate
 complex numbers. By default, Perl limits itself to real numbers, but an
 extra "use" statement brings full complex support, along with a full
 set of mathematical functions typically associated with and/or extended
 to complex numbers.
 .
 Also included is Math::Trig providing trigonometric functions beyond
 what is provided by Perl itself.