Sorry for the confusion regarding range(). Are there other idioms not in standard python that should be highlighted?
Thanks! --Jose On Sep 16, 11:31 am, "William Stein" <[EMAIL PROTECTED]> wrote: > On Tue, Sep 16, 2008 at 11:24 AM, Robert Bradshaw > > > > <[EMAIL PROTECTED]> wrote: > > > On Sep 16, 2008, at 10:42 AM, Jose wrote: > > >> All: > > >> I'm thinking about putting together another screencast in the same > >> vein as > > >>http://showmedo.com/videos/video?name=2450010&fromSeriesID=245 > > >> on the special idioms in sage (i.e. the 0..10 = range(10)) and on the > >> new functions to put GUI components on variables in the notebook > >> interface. > > > I think this is a great idea. Note, however, that range(10) is 1..9 > > as in Python the upper endpoint is not included. > > Hey, this is getting confusion, especially since you wrote the code. > > (a) 1..9 means nothing -- sage doesn't even have that: > > sage: 1..9 > TypeError > > (b) [1..9] does include both endpoints: > > sage: [1..9] > [1, 2, 3, 4, 5, 6, 7, 8, 9] > > (c) [0..9] does not exactly equal range(10) (because of data types), > but is close: > > sage: [0..9] > [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] > sage: range(10) > [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] > sage: type([0..9] [0]) > <type 'sage.rings.integer.Integer'> > sage: type(range(10) [0]) > <type 'int'> > sage: type(srange(10) [0]) > <type 'sage.rings.integer.Integer'> > > William --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sage-edu" group. To post to this group, send email to sage-edu@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-edu?hl=en -~----------~----~----~----~------~----~------~--~---
