joinIdeal(I,J)
joinIdeal L
This function computes the ideal of the join by constructing the abstract join and then projecting with elimination.
Setting the optional argument DegreeLimit to \{d\} will produce only the generators of the join ideal up to degree d.
This method is general and will work for arbitrary polynomial ideals, not just phylogenetic ideals.




The object joinIdeal is a method function with options.