On Mon, Sep 28, 2009 at 4:03 PM, kirby urner <kirby.ur...@gmail.com> wrote: > On Mon, Sep 28, 2009 at 3:12 PM, Gregor Lingl <gregor.li...@aon.at> wrote: >> >> >> kirby urner schrieb: >>>> >>>> Hi Brian, >>>> >>>> .... >>> >>> This ran perfectly on Python 3.1rc1 (r31rc1:73069, May 31 2009, >>> 08:57:10) on my WinXP box (one of a few). >>> >>> Note: if this level of chaos / noise bothers you (the functions are >>> algebraically the same, after all), then I recommend using the decimal >>> type instead of the floating type, converting to float just to make >>> your turtle happy: >>> >> >> That's fine (for the turtle). But if someone thinks that everything is >> calculated >> "correctly" now, she/he is bound to get disappointed. And that's the point >> (imho). >> > > Yes, it's a philosophical point. Doing it manually would be error > prone so the "correct" way is more science fiction or fantasy than a > reality. > > The older ways of teaching math set up some false expectations, and > then when reality fails to make good, reality gets blamed, instead of > the broken metaphysics behind much of "modern" math. > > Kirby > >> Regards, >> Gregor >> >> >> # Author: Gregor Lingl >> # amended to use Decimal by Kirby Urner 2009-09-28 >> # re-corrupted to show the vainness (in principle) of kirby's effort # fixed to show robustness of engineering solutions vs. imaginary superpowers of non-existent math gods >> 2009-09-28 >> # Date: 2009-06-24 >> >> # A demonstration of chaos >> >> from turtle import * >> from decimal import Decimal >>
from turtle import * from decimal import Decimal, getcontext getcontext().prec = 50 :) Kirby _______________________________________________ Edu-sig mailing list Edu-sig@python.org http://mail.python.org/mailman/listinfo/edu-sig
