[,APV-method            Retrieve an Amalgam by Index
[,CPV-method            Retrieve a Combination by Index
[,PPV-method            Retrieve a Permutation by Index
[,SPV-method            Retrieve a Selection by Index
[,SSPV-method           Retrieve a Subset by Index
apv                     Amalgams Pseudo-Vector Constructor
cpv                     Combinations Pseudo-Vector Constructor
length,APV-method       Amalgams Pseudo-Vector Length
length,CPV-method       Combinations Pseudo-Vector Length
length,PPV-method       Permutations Pseudo-Vector Length
length,SPV-method       Selections Pseudo-Vector Length
length,SSPV-method      Subsets Pseudo-Vector Length
ppv                     Permutations Pseudo-Vector Constructor
spv                     Selections Pseudo-Vector Constructor
sspv                    Subsets Pseudo-Vector Constructor
