NAME

Bio::Phylo::Util::Math - Utility math functions

EXPORTED FUNCTIONS

nchoose_static

Calculation of n choose j. This version saves partial results for use later.

            

              
              
Type    : Exported function
Title   : nchoose_static
Usage   : $c = nchoose_static( $n, $j )
Function: Calculation of n choose j.
Returns : n-choose
Args    : $n, $j
            
          

nchoose

Calculation of n choose j. Dynamic version.

            

              
              
Type    : Exported function
Title   : nchoose
Usage   : $c = nchoose( $n, $j )
Function: Calculation of n choose j.
Returns : n-choose
Args    : $n, $j
            
          

gcd

Greatest common denominator - assumes positive integers as input

            

              
              
Type    : Exported function
Title   : gcd
Usage   : $gcd = gcd( $n, $m )
Function: Greatest common denominator
Returns : $gcd
Args    : $n, $m
            
          

gcd_divide

Takes two large integers and attempts to divide them and give the float answer without overflowing

            

              
              
Type    : Exported function
Title   : gcd_divide
Usage   : $gcd = gcd_divide( $n, $m )
Function: Greatest common denominator
Returns : $gcd
Args    : $n, $m
            
          

SEE ALSO

There is a mailing list at https://groups.google.com/forum/#!forum/bio-phylo for any user or developer questions and discussions.

Bio::Phylo::Manual

Also see the manual: Bio::Phylo::Manual and http://rutgervos.blogspot.com.

CITATION

If you use Bio::Phylo in published research, please cite it:

Rutger A Vos, Jason Caravas, Klaas Hartmann, Mark A Jensen and Chase Miller, 2011. Bio::Phylo - phyloinformatic analysis using Perl. BMC Bioinformatics 12:63. http://dx.doi.org/10.1186/1471-2105-12-63