digamma function

My digamma package[1] implements an approximation to the digamma function (due to Tom Minka). Considering that the math-functions package already has a gamma implementation, it seems it would be natural to merge digamma into this package. Alternatively (or additionally), James Cook's gamma package also has a variety of gamma implementations and is also a candidate for merging digamma into. I don't mind maintaining digamma, but it might be easier for others if there were a single package providing all of these functions. Do others have an opinion on this? Are either (or both) of you interested in picking up a digamma implementation? Cheers, - Ben [1] http://hackage.haskell.org/package/digamma