On Nov 6, 2009, at 9:52 PM, luisfe wrote: > Hi, > > Quite a long time ago, somebody posted this > >> Mon, 02 Jul 2007 10:36:10 -0700 >> >> I am in need of free software that will work with polynomials over >> the >> Tropical semiring. I was unable to find anything suitable, so I >> thought I would take a stab at implementing them in sage. I have >> just >> barely found sage though, so I don't yet understand it entirely. >> This >> list seemed very friendly so I thought I would ask a few questions: >> >> 1. Is this already implemented under a different name (it's also >> called min-plus algebra), or someplace that I overlooked? >> >> 2. Is it reasonable to implement in sage? In particular one thing >> that I think may be difficult is that the polynomial 'x+3' is really >> '0*x+3' since 0 is the multiplicative identity (infinity is the >> additive identity). >> >> 3. Where is the best place to go to find out how to develop a sage >> package etc. Also good tutorials for python would be appreciated, >> since I have never done any python development. I do have experience >> in a variety of other languages. >> >> 4. Would this be better to implement in something like GAP (so that >> GAP users can take advantage of it as well) and then access it >> through >> sage? > > Has anyone made some progress about this?
I think that was me. I know that _I_ haven't done anything on this. As usual I was overly optimistic about how much time I had back then. :) -Ivan --~--~---------~--~----~------------~-------~--~----~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
