Math::Fibonacci::Phi - Perl extension for calculating Phi and phi for Fibonacci numbers. use Math::Fibonacci::Phi; use Math::Fibonacci::Phi qw(Phi phi); use Math::Fibonacci::Phi ':all'

EXPORT
None by default. Everything in the function section below can be imported and ':all' will do all functions.

Phi($fn)
Calculates and returns Phi (The Golden Number) for the given Fibonacci Number. It returns undef if the argument is not part of the Fibonacci sequence.

phi($fn)
Calculates and returns phi (opposite of Phi, antiPhi) for the given Fibonacci Number. It returns undef if the argument is not part of the Fibonacci sequence.

series_Phi($n)
Returns a hashref of the first $n Fibonacci Numbers where each key is the Fibonacci and the value is its Phi.

series_phi($n)
Returns a hashref of the first $n Fibonacci Numbers where each key is the Fibonacci and the value is its phi.

term_Phi($nth)
Returns Phi for the $nth Fibonacci number.

term_phi($nth)
Returns phi for the $nth Fibonacci number.

super_series($n)
Returns a hashref of the first $n Fibonacci Numbers where each key is the Fibonacci and the value is a hashref that has these 3 keys: 'Phi', 'phi', and 'position' 'position' is its location in the sequence (IE same number as the argument you'd give to term_Phi() or term_phi() )

$Math::Fibonacci::Phi::Precision
This can be a number from 1 - 14 to specify the decimal precision you'd like. use Math::Fibonacci::Phi 'Phi'; print Phi(5), "\n"; $Math::Fibonacci::Phi::Precision = 7; print Phi(5), "\n"; result is: 1.66666666666667 1.6666667

$Math::Fibonacci::Phi::TrailingZeros
If $Math::Fibonacci::Phi::Precision is set then you can set this to true to keep the trailing zeros. use Math::Fibonacci::Phi 'Phi'; $Math::Fibonacci::Phi::Precision = 5; print Phi(3), "\n"; $Math::Fibonacci::Phi::TrailingZeros=1 print Phi(3), "\n"; result is: 1.5 1.50000 Math::Fibonacci Daniel Muey, <http://drmuey.com/cpan_contact.pl> Copyright 2005 by Daniel Muey This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.