Singular/Sources — pull request #177 by YueRen (2012-09-05 17:24:44+00:00)
Title: Gfanlib

increased userfriendlyness:
- created a new function to construct fans by specifying a collection of cones
(should be easier than creating an empty fan and repeatedly inserting cones)
- made some arguments optional for extracting cones
(default values are the values one would expect to be default)
- created a new function to read out all cones in a given dimension
- created a new function to construct fans through strings
(needed for an interface to gfan, until Anders makes certain features available in gfanlib)