Hi there, In combinatorics, we very often use the set of non negative integers. It is currently implemented in sage as NonNegativeIntegers(). Note that it is only a facade parent, that is element it generate are plain standard sage Integer with parent ZZ. We'd like to have it standard in the interface under the name NN as well as a standard latex macro. Is there any objection to that ?
Cheers, Florent -- 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
