Mike Hansen wrote: > On Mon, May 4, 2009 at 12:19 PM, Jaap Spies <j.sp...@hccnet.nl> wrote: >> Another Python builtin is pow(), but how is it possible that >> type(pow(2,9,11)) returns >> <type 'sage.rings.integer_mod.IntegerMod_int'> >> >> Or am I mistaken? > > The pow() builtin just calls __pow__ on the first argument in that > case, which we control so we can return one of our types. len() will > call __len__, but forces whatever is returned to be an int. This is > what will be changing in Python 3.0. >
Than pow? gives a misleading text: >> Type: <type 'builtin_function_or_method'> >> Definition: pow( [noargspec] ) >> Docstring: >> pow(x, y[, z]) -> number >> >> With two arguments, equivalent to x**y. With three arguments, >> equivalent to (x**y) % z, but may be more efficient (e.g. for longs). type(pow(2,9)) returns <type 'sage.rings.integer.Integer'> type(pow(2,9) % 11) returns <type 'sage.rings.integer.Integer'> same for type(2^9 % 11) and type(2**9 % 11) Jaap > --Mike > > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
