[pgrouting-users] withPoints functions

[Jakob Miksch]

Dear List,

I am exploring the "withPoints" functions [1].
Two questions regarding them:

Are they considered as stable, are they already in use somewhere?

Why is only "pgr_withPointsDD"[2] listed in the table of contents [3]? 
(and not the other four existing "withPoints" functions?)

Thanks and best regards,
Jakob

[1] http://docs.pgrouting.org/latest/en/withPoints-family.html
[2] 
http://docs.pgrouting.org/latest/en/pgr_withPointsDD.html#pgr-withpointsdd
[3] http://docs.pgrouting.org/latest/en/index.html