Revision history for Perl extension Chemistry::Bond::Find 0.23 May 10 2009 - Turned the variables with the covalent radii into globals in case someone really needs them (per Perl's no-shotgun policy). - Added an undocumented 'valid_bonds' method (Liliana Felix Avila). 0.22 Apr 12 2005 - Fixed bug in Baber algorithm for terminal methyls with no hydrogens. Added a modification to improve results for conjugated systems. 0.21 Jun 16 2004 - New options for assign_bond_orders: scratch. 0.20 May 18 2004 - Added assign_bon_orders. 0.10 May 12 2004 - Changed the recursive algorithm for a hash bucket algorithm, which is 2-3 times faster for larger molecules. 0.05 May 11 2004 - First CPAN release