The way that the info is stored in the downloadable knot altas is explained here:
http://katlas.math.toronto.edu/wiki/The_Take_Home_Database I don't know about the snappy databse. But i agree it would be cool to have it. Right now it goes beyond the scope of the knotr/link module, but maybein the future we could add 3- and 4-manifolds to sage. That would be a even a harder work than the basic knots we are working on, though. El domingo, 28 de septiembre de 2014 23:35:19 UTC+2, vdelecroix escribió: > > 2014-09-28 21:01 UTC+02:00, mmarco <mma...@unizar.es <javascript:>>: > > Typically invariants are polynomials with integer coefficients > (sometimes > > with negative or even rational exponents). I guess they could be > converted > > to a dictionary (maybe represented by a list), but doesn't sound like > the > > kind of data structure that fits well on a databse index. > > > > Maybe storing the hash of the invariants would be a good idea? > > No. Store the polynomial as a string, it would be much more simple... > and much more readable. At some point you might want to access the > database without having to guess what is the data inside. > > The upstream database is only a text file? Do you know how they do in > Snappy? There is a huge collection of 3 manifolds inside. It would be > cool to have something somehow compatible. > > Vincent > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
