On 11/3/07, John Voight <[EMAIL PROTECTED]> wrote: > > sage: ZZ['x'] > Univariate Polynomial Ring in x over Integer Ring > sage: F = NumberField(x^2+1) > --------------------------------------------------------------------------- > <type 'exceptions.TypeError'> Traceback (most recent call > last) > > /home/jvoight/<ipython console> in <module>() > > /home/jvoight/sage/local/lib/python2.5/site-packages/sage/rings/ > number_field/number_field.py in NumberField(polynomial, name, check, > names, cache) > 238 """ > 239 if name is None and names is None: > --> 240 raise TypeError, "You must specify the name of the > generator." > 241 if not names is None: > 242 name = names > > <type 'exceptions.TypeError'>: You must specify the name of the > generator. > > Why must we name the generator? There are many situations that I just > need to work with the field without naming anything. Could we agree > on a default name, like 'a' or '$.1' or something?
One possible idea: [2:34pm] was-547: I suspect people might suggest a scheme whereby one can set a rule for global auto-generation of variable names. [2:35pm] jvoight-1085: Yeah, as long as there's a good reason for it, I don't really care what the ultimate answer is. [2:35pm] was-547: E.g., one can set them to all be "a", or be a,b,c,d,e, or a0, a1, a2, [2:35pm] was-547: and anybody can do what they want. [2:35pm] was-547: Then any function that needs names can get them from that global thing. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
